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Finding the Fourth Proportional to 52,714.76, 72,739.18 and 31,489.52

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Solution

The fourth proportional to 52,714.76, 72,739.18 and 31,489.52 is: 43,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,714.76 : 72,739.18 = 31,489.52 : x
  2. Step 2: Convert to fraction form
    52,714.76/72,739.18 = 31,489.52/x
  3. Step 3: Cross multiply
    52,714.76x = 72,739.18 × 31,489.52
  4. Step 4: Simplify right side
    52,714.76x = 2,290,521,420.97
  5. Step 5: Solve for x
    x = 2,290,521,420.97/52,714.76
  6. Step 6: Final answer
    x = 43,451.24

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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.