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Finding the Fourth Proportional to 38,957.52, 58,471 and 18,192.72

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Solution

The fourth proportional to 38,957.52, 58,471 and 18,192.72 is: 27,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.52 : 58,471 = 18,192.72 : x
  2. Step 2: Convert to fraction form
    38,957.52/58,471 = 18,192.72/x
  3. Step 3: Cross multiply
    38,957.52x = 58,471 × 18,192.72
  4. Step 4: Simplify right side
    38,957.52x = 1,063,746,531.12
  5. Step 5: Solve for x
    x = 1,063,746,531.12/38,957.52
  6. Step 6: Final answer
    x = 27,305.29

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1.5x scale

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.