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Finding the Fourth Proportional to 39,458.25, 54,454.01 and 22,691.25

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Solution

The fourth proportional to 39,458.25, 54,454.01 and 22,691.25 is: 31,314.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.25 : 54,454.01 = 22,691.25 : x
  2. Step 2: Convert to fraction form
    39,458.25/54,454.01 = 22,691.25/x
  3. Step 3: Cross multiply
    39,458.25x = 54,454.01 × 22,691.25
  4. Step 4: Simplify right side
    39,458.25x = 1,235,629,554.41
  5. Step 5: Solve for x
    x = 1,235,629,554.41/39,458.25
  6. Step 6: Final answer
    x = 31,314.86

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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.