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Finding the Fourth Proportional to 40,372.50, 55,714.05 and 22,708.50

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Solution

The fourth proportional to 40,372.50, 55,714.05 and 22,708.50 is: 31,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,372.50 : 55,714.05 = 22,708.50 : x
  2. Step 2: Convert to fraction form
    40,372.50/55,714.05 = 22,708.50/x
  3. Step 3: Cross multiply
    40,372.50x = 55,714.05 × 22,708.50
  4. Step 4: Simplify right side
    40,372.50x = 1,265,182,504.43
  5. Step 5: Solve for x
    x = 1,265,182,504.43/40,372.50
  6. Step 6: Final answer
    x = 31,337.73

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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.