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Finding the Fourth Proportional to 65,658.48, 98,478.41 and 37,487.09

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Solution

The fourth proportional to 65,658.48, 98,478.41 and 37,487.09 is: 56,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,658.48 : 98,478.41 = 37,487.09 : x
  2. Step 2: Convert to fraction form
    65,658.48/98,478.41 = 37,487.09/x
  3. Step 3: Cross multiply
    65,658.48x = 98,478.41 × 37,487.09
  4. Step 4: Simplify right side
    65,658.48x = 3,691,668,338.90
  5. Step 5: Solve for x
    x = 3,691,668,338.90/65,658.48
  6. Step 6: Final answer
    x = 56,225.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.