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Finding the Fourth Proportional to 58,555.98, 80,842.05 and 38,448

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Solution

The fourth proportional to 58,555.98, 80,842.05 and 38,448 is: 53,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,555.98 : 80,842.05 = 38,448 : x
  2. Step 2: Convert to fraction form
    58,555.98/80,842.05 = 38,448/x
  3. Step 3: Cross multiply
    58,555.98x = 80,842.05 × 38,448
  4. Step 4: Simplify right side
    58,555.98x = 3,108,215,138.40
  5. Step 5: Solve for x
    x = 3,108,215,138.40/58,555.98
  6. Step 6: Final answer
    x = 53,081.09

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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.