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Finding the Fourth Proportional to 84,387.88, 116,454.97 and 47,591.17

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Solution

The fourth proportional to 84,387.88, 116,454.97 and 47,591.17 is: 65,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,387.88 : 116,454.97 = 47,591.17 : x
  2. Step 2: Convert to fraction form
    84,387.88/116,454.97 = 47,591.17/x
  3. Step 3: Cross multiply
    84,387.88x = 116,454.97 × 47,591.17
  4. Step 4: Simplify right side
    84,387.88x = 5,542,228,274.61
  5. Step 5: Solve for x
    x = 5,542,228,274.61/84,387.88
  6. Step 6: Final answer
    x = 65,675.64

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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.