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Finding the Fourth Proportional to 16,620.28, 22,929.19 and 10,655.44

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Solution

The fourth proportional to 16,620.28, 22,929.19 and 10,655.44 is: 14,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.28 : 22,929.19 = 10,655.44 : x
  2. Step 2: Convert to fraction form
    16,620.28/22,929.19 = 10,655.44/x
  3. Step 3: Cross multiply
    16,620.28x = 22,929.19 × 10,655.44
  4. Step 4: Simplify right side
    16,620.28x = 244,320,608.29
  5. Step 5: Solve for x
    x = 244,320,608.29/16,620.28
  6. Step 6: Final answer
    x = 14,700.15

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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.