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Finding the Fourth Proportional to 91,646.87, 137,470.19 and 25,087.55

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Solution

The fourth proportional to 91,646.87, 137,470.19 and 25,087.55 is: 37,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,646.87 : 137,470.19 = 25,087.55 : x
  2. Step 2: Convert to fraction form
    91,646.87/137,470.19 = 25,087.55/x
  3. Step 3: Cross multiply
    91,646.87x = 137,470.19 × 25,087.55
  4. Step 4: Simplify right side
    91,646.87x = 3,448,789,452.35
  5. Step 5: Solve for x
    x = 3,448,789,452.35/91,646.87
  6. Step 6: Final answer
    x = 37,631.29

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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.