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Finding the Fourth Proportional to 85,960.52, 118,625.70 and 47,720.62

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Solution

The fourth proportional to 85,960.52, 118,625.70 and 47,720.62 is: 65,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,960.52 : 118,625.70 = 47,720.62 : x
  2. Step 2: Convert to fraction form
    85,960.52/118,625.70 = 47,720.62/x
  3. Step 3: Cross multiply
    85,960.52x = 118,625.70 × 47,720.62
  4. Step 4: Simplify right side
    85,960.52x = 5,660,891,951.93
  5. Step 5: Solve for x
    x = 5,660,891,951.93/85,960.52
  6. Step 6: Final answer
    x = 65,854.56

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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.