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Finding the Fourth Proportional to 38,356.54, 57,531.03 and 12,060.58

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Solution

The fourth proportional to 38,356.54, 57,531.03 and 12,060.58 is: 18,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,356.54 : 57,531.03 = 12,060.58 : x
  2. Step 2: Convert to fraction form
    38,356.54/57,531.03 = 12,060.58/x
  3. Step 3: Cross multiply
    38,356.54x = 57,531.03 × 12,060.58
  4. Step 4: Simplify right side
    38,356.54x = 693,857,589.80
  5. Step 5: Solve for x
    x = 693,857,589.80/38,356.54
  6. Step 6: Final answer
    x = 18,089.68

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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.