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Finding the Fourth Proportional to 58,488.69, 80,714.35 and 31,631.28

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Solution

The fourth proportional to 58,488.69, 80,714.35 and 31,631.28 is: 43,651.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,488.69 : 80,714.35 = 31,631.28 : x
  2. Step 2: Convert to fraction form
    58,488.69/80,714.35 = 31,631.28/x
  3. Step 3: Cross multiply
    58,488.69x = 80,714.35 × 31,631.28
  4. Step 4: Simplify right side
    58,488.69x = 2,553,098,204.87
  5. Step 5: Solve for x
    x = 2,553,098,204.87/58,488.69
  6. Step 6: Final answer
    x = 43,651.14

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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.