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Finding the Fourth Proportional to 65,372.40, 97,828.20 and 59,842.80

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Solution

The fourth proportional to 65,372.40, 97,828.20 and 59,842.80 is: 89,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,372.40 : 97,828.20 = 59,842.80 : x
  2. Step 2: Convert to fraction form
    65,372.40/97,828.20 = 59,842.80/x
  3. Step 3: Cross multiply
    65,372.40x = 97,828.20 × 59,842.80
  4. Step 4: Simplify right side
    65,372.40x = 5,854,313,406.96
  5. Step 5: Solve for x
    x = 5,854,313,406.96/65,372.40
  6. Step 6: Final answer
    x = 89,553.29

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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.