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Finding the Fourth Proportional to 60,872.26, 84,027.12 and 54,487.56

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Solution

The fourth proportional to 60,872.26, 84,027.12 and 54,487.56 is: 75,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,872.26 : 84,027.12 = 54,487.56 : x
  2. Step 2: Convert to fraction form
    60,872.26/84,027.12 = 54,487.56/x
  3. Step 3: Cross multiply
    60,872.26x = 84,027.12 × 54,487.56
  4. Step 4: Simplify right side
    60,872.26x = 4,578,432,742.63
  5. Step 5: Solve for x
    x = 4,578,432,742.63/60,872.26
  6. Step 6: Final answer
    x = 75,213.78

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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.