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Finding the Fourth Proportional to 83,598.98, 115,366.58 and 47,789.79

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Solution

The fourth proportional to 83,598.98, 115,366.58 and 47,789.79 is: 65,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,598.98 : 115,366.58 = 47,789.79 : x
  2. Step 2: Convert to fraction form
    83,598.98/115,366.58 = 47,789.79/x
  3. Step 3: Cross multiply
    83,598.98x = 115,366.58 × 47,789.79
  4. Step 4: Simplify right side
    83,598.98x = 5,513,344,392.27
  5. Step 5: Solve for x
    x = 5,513,344,392.27/83,598.98
  6. Step 6: Final answer
    x = 65,949.90

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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.