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Finding the Fourth Proportional to 65,988.48, 91,042.68 and 37,305.36

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Solution

The fourth proportional to 65,988.48, 91,042.68 and 37,305.36 is: 51,469.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988.48 : 91,042.68 = 37,305.36 : x
  2. Step 2: Convert to fraction form
    65,988.48/91,042.68 = 37,305.36/x
  3. Step 3: Cross multiply
    65,988.48x = 91,042.68 × 37,305.36
  4. Step 4: Simplify right side
    65,988.48x = 3,396,379,952.76
  5. Step 5: Solve for x
    x = 3,396,379,952.76/65,988.48
  6. Step 6: Final answer
    x = 51,469.29

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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.