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Finding the Fourth Proportional to 65,249.40, 89,958.50 and 47,084.88

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Solution

The fourth proportional to 65,249.40, 89,958.50 and 47,084.88 is: 64,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,249.40 : 89,958.50 = 47,084.88 : x
  2. Step 2: Convert to fraction form
    65,249.40/89,958.50 = 47,084.88/x
  3. Step 3: Cross multiply
    65,249.40x = 89,958.50 × 47,084.88
  4. Step 4: Simplify right side
    65,249.40x = 4,235,685,177.48
  5. Step 5: Solve for x
    x = 4,235,685,177.48/65,249.40
  6. Step 6: Final answer
    x = 64,915.31

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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.