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Finding the Fourth Proportional to 16,310.76, 22,508.71 and 8,858.76

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Solution

The fourth proportional to 16,310.76, 22,508.71 and 8,858.76 is: 12,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,310.76 : 22,508.71 = 8,858.76 : x
  2. Step 2: Convert to fraction form
    16,310.76/22,508.71 = 8,858.76/x
  3. Step 3: Cross multiply
    16,310.76x = 22,508.71 × 8,858.76
  4. Step 4: Simplify right side
    16,310.76x = 199,399,259.80
  5. Step 5: Solve for x
    x = 199,399,259.80/16,310.76
  6. Step 6: Final answer
    x = 12,225.01

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Find fourth proportional to 8,155.38, 11,254.36 and 4,429.38
Half scale
Find fourth proportional to 32,621.52, 45,017.42 and 17,717.52
Double scale
Find fourth proportional to 16,311.76, 22,510.09 and 8,859.76
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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.