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Finding the Fourth Proportional to 40,978.91, 56,550.26 and 23,073.86

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Solution

The fourth proportional to 40,978.91, 56,550.26 and 23,073.86 is: 31,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,978.91 : 56,550.26 = 23,073.86 : x
  2. Step 2: Convert to fraction form
    40,978.91/56,550.26 = 23,073.86/x
  3. Step 3: Cross multiply
    40,978.91x = 56,550.26 × 23,073.86
  4. Step 4: Simplify right side
    40,978.91x = 1,304,832,384.08
  5. Step 5: Solve for x
    x = 1,304,832,384.08/40,978.91
  6. Step 6: Final answer
    x = 31,841.56

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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.