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Finding the Fourth Proportional to 65,327.40, 97,796.70 and 39,018.60

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Solution

The fourth proportional to 65,327.40, 97,796.70 and 39,018.60 is: 58,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,327.40 : 97,796.70 = 39,018.60 : x
  2. Step 2: Convert to fraction form
    65,327.40/97,796.70 = 39,018.60/x
  3. Step 3: Cross multiply
    65,327.40x = 97,796.70 × 39,018.60
  4. Step 4: Simplify right side
    65,327.40x = 3,815,890,318.62
  5. Step 5: Solve for x
    x = 3,815,890,318.62/65,327.40
  6. Step 6: Final answer
    x = 58,411.79

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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.