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Finding the Fourth Proportional to 58,490.70, 80,717.10 and 31,633.29

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Solution

The fourth proportional to 58,490.70, 80,717.10 and 31,633.29 is: 43,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,490.70 : 80,717.10 = 31,633.29 : x
  2. Step 2: Convert to fraction form
    58,490.70/80,717.10 = 31,633.29/x
  3. Step 3: Cross multiply
    58,490.70x = 80,717.10 × 31,633.29
  4. Step 4: Simplify right side
    58,490.70x = 2,553,347,432.26
  5. Step 5: Solve for x
    x = 2,553,347,432.26/58,490.70
  6. Step 6: Final answer
    x = 43,653.90

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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.