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Finding the Fourth Proportional to 16,658.68, 22,988.20 and 9,104.76

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Solution

The fourth proportional to 16,658.68, 22,988.20 and 9,104.76 is: 12,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.68 : 22,988.20 = 9,104.76 : x
  2. Step 2: Convert to fraction form
    16,658.68/22,988.20 = 9,104.76/x
  3. Step 3: Cross multiply
    16,658.68x = 22,988.20 × 9,104.76
  4. Step 4: Simplify right side
    16,658.68x = 209,302,043.83
  5. Step 5: Solve for x
    x = 209,302,043.83/16,658.68
  6. Step 6: Final answer
    x = 12,564.14

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Find fourth proportional to 8,329.34, 11,494.10 and 4,552.38
Half scale
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Double scale
Find fourth proportional to 16,659.68, 22,989.58 and 9,105.76
Similar ratio
Find fourth proportional to 24,988.02, 34,482.30 and 13,657.14
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.