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Finding the Fourth Proportional to 54,667.40, 82,001.10 and 47,755.40

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Solution

The fourth proportional to 54,667.40, 82,001.10 and 47,755.40 is: 71,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,667.40 : 82,001.10 = 47,755.40 : x
  2. Step 2: Convert to fraction form
    54,667.40/82,001.10 = 47,755.40/x
  3. Step 3: Cross multiply
    54,667.40x = 82,001.10 × 47,755.40
  4. Step 4: Simplify right side
    54,667.40x = 3,915,995,330.94
  5. Step 5: Solve for x
    x = 3,915,995,330.94/54,667.40
  6. Step 6: Final answer
    x = 71,633.10

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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.