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Finding the Fourth Proportional to 16,470.73, 22,729.44 and 8,916.86

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Solution

The fourth proportional to 16,470.73, 22,729.44 and 8,916.86 is: 12,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,470.73 : 22,729.44 = 8,916.86 : x
  2. Step 2: Convert to fraction form
    16,470.73/22,729.44 = 8,916.86/x
  3. Step 3: Cross multiply
    16,470.73x = 22,729.44 × 8,916.86
  4. Step 4: Simplify right side
    16,470.73x = 202,675,260.69
  5. Step 5: Solve for x
    x = 202,675,260.69/16,470.73
  6. Step 6: Final answer
    x = 12,305.18

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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.