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Finding the Fourth Proportional to 65,015.70, 97,515.18 and 27,591

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Solution

The fourth proportional to 65,015.70, 97,515.18 and 27,591 is: 41,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,015.70 : 97,515.18 = 27,591 : x
  2. Step 2: Convert to fraction form
    65,015.70/97,515.18 = 27,591/x
  3. Step 3: Cross multiply
    65,015.70x = 97,515.18 × 27,591
  4. Step 4: Simplify right side
    65,015.70x = 2,690,541,331.38
  5. Step 5: Solve for x
    x = 2,690,541,331.38/65,015.70
  6. Step 6: Final answer
    x = 41,382.95

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1.5x scale

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.