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Finding the Fourth Proportional to 54,472.92, 81,667.84 and 28,160.88

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Solution

The fourth proportional to 54,472.92, 81,667.84 and 28,160.88 is: 42,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,472.92 : 81,667.84 = 28,160.88 : x
  2. Step 2: Convert to fraction form
    54,472.92/81,667.84 = 28,160.88/x
  3. Step 3: Cross multiply
    54,472.92x = 81,667.84 × 28,160.88
  4. Step 4: Simplify right side
    54,472.92x = 2,299,838,242.10
  5. Step 5: Solve for x
    x = 2,299,838,242.10/54,472.92
  6. Step 6: Final answer
    x = 42,219.85

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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.