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Finding the Fourth Proportional to 16,480.92, 22,743.32 and 9,407.18

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Solution

The fourth proportional to 16,480.92, 22,743.32 and 9,407.18 is: 12,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,480.92 : 22,743.32 = 9,407.18 : x
  2. Step 2: Convert to fraction form
    16,480.92/22,743.32 = 9,407.18/x
  3. Step 3: Cross multiply
    16,480.92x = 22,743.32 × 9,407.18
  4. Step 4: Simplify right side
    16,480.92x = 213,950,505.04
  5. Step 5: Solve for x
    x = 213,950,505.04/16,480.92
  6. Step 6: Final answer
    x = 12,981.71

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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.