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Finding the Fourth Proportional to 38,862.20, 54,562.60 and 38,862.20

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Solution

The fourth proportional to 38,862.20, 54,562.60 and 38,862.20 is: 54,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,862.20 : 54,562.60 = 38,862.20 : x
  2. Step 2: Convert to fraction form
    38,862.20/54,562.60 = 38,862.20/x
  3. Step 3: Cross multiply
    38,862.20x = 54,562.60 × 38,862.20
  4. Step 4: Simplify right side
    38,862.20x = 2,120,422,673.72
  5. Step 5: Solve for x
    x = 2,120,422,673.72/38,862.20
  6. Step 6: Final answer
    x = 54,562.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.