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Finding the Fourth Proportional to 31,060.52, 42,863.52 and 16,913.38

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Solution

The fourth proportional to 31,060.52, 42,863.52 and 16,913.38 is: 23,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,060.52 : 42,863.52 = 16,913.38 : x
  2. Step 2: Convert to fraction form
    31,060.52/42,863.52 = 16,913.38/x
  3. Step 3: Cross multiply
    31,060.52x = 42,863.52 × 16,913.38
  4. Step 4: Simplify right side
    31,060.52x = 724,967,001.90
  5. Step 5: Solve for x
    x = 724,967,001.90/31,060.52
  6. Step 6: Final answer
    x = 23,340.47

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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.