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Finding the Fourth Proportional to 28,732.16, 43,092 and 9,008.12

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Solution

The fourth proportional to 28,732.16, 43,092 and 9,008.12 is: 13,510.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.16 : 43,092 = 9,008.12 : x
  2. Step 2: Convert to fraction form
    28,732.16/43,092 = 9,008.12/x
  3. Step 3: Cross multiply
    28,732.16x = 43,092 × 9,008.12
  4. Step 4: Simplify right side
    28,732.16x = 388,177,691.58
  5. Step 5: Solve for x
    x = 388,177,691.58/28,732.16
  6. Step 6: Final answer
    x = 13,510.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.