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Finding the Fourth Proportional to 69,381.76, 95,724.48 and 42,496.24

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Solution

The fourth proportional to 69,381.76, 95,724.48 and 42,496.24 is: 58,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,381.76 : 95,724.48 = 42,496.24 : x
  2. Step 2: Convert to fraction form
    69,381.76/95,724.48 = 42,496.24/x
  3. Step 3: Cross multiply
    69,381.76x = 95,724.48 × 42,496.24
  4. Step 4: Simplify right side
    69,381.76x = 4,067,930,475.96
  5. Step 5: Solve for x
    x = 4,067,930,475.96/69,381.76
  6. Step 6: Final answer
    x = 58,631.12

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1.5x scale

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.