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Finding the Fourth Proportional to 83,891.58, 115,769.52 and 47,599.71

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Solution

The fourth proportional to 83,891.58, 115,769.52 and 47,599.71 is: 65,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,891.58 : 115,769.52 = 47,599.71 : x
  2. Step 2: Convert to fraction form
    83,891.58/115,769.52 = 47,599.71/x
  3. Step 3: Cross multiply
    83,891.58x = 115,769.52 × 47,599.71
  4. Step 4: Simplify right side
    83,891.58x = 5,510,595,578.84
  5. Step 5: Solve for x
    x = 5,510,595,578.84/83,891.58
  6. Step 6: Final answer
    x = 65,687.11

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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.