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Finding the Fourth Proportional to 16,602.80, 24,904.20 and 13,722.80

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Solution

The fourth proportional to 16,602.80, 24,904.20 and 13,722.80 is: 20,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,602.80 : 24,904.20 = 13,722.80 : x
  2. Step 2: Convert to fraction form
    16,602.80/24,904.20 = 13,722.80/x
  3. Step 3: Cross multiply
    16,602.80x = 24,904.20 × 13,722.80
  4. Step 4: Simplify right side
    16,602.80x = 341,755,355.76
  5. Step 5: Solve for x
    x = 341,755,355.76/16,602.80
  6. Step 6: Final answer
    x = 20,584.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.