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Finding the Fourth Proportional to 37,689.60, 56,542.60 and 11,393.66

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Solution

The fourth proportional to 37,689.60, 56,542.60 and 11,393.66 is: 17,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,689.60 : 56,542.60 = 11,393.66 : x
  2. Step 2: Convert to fraction form
    37,689.60/56,542.60 = 11,393.66/x
  3. Step 3: Cross multiply
    37,689.60x = 56,542.60 × 11,393.66
  4. Step 4: Simplify right side
    37,689.60x = 644,226,877.20
  5. Step 5: Solve for x
    x = 644,226,877.20/37,689.60
  6. Step 6: Final answer
    x = 17,092.96

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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.