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Finding the Fourth Proportional to 83,711.80, 125,585.90 and 27,557.62

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Solution

The fourth proportional to 83,711.80, 125,585.90 and 27,557.62 is: 41,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,711.80 : 125,585.90 = 27,557.62 : x
  2. Step 2: Convert to fraction form
    83,711.80/125,585.90 = 27,557.62/x
  3. Step 3: Cross multiply
    83,711.80x = 125,585.90 × 27,557.62
  4. Step 4: Simplify right side
    83,711.80x = 3,460,848,509.56
  5. Step 5: Solve for x
    x = 3,460,848,509.56/83,711.80
  6. Step 6: Final answer
    x = 41,342.42

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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.