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Finding the Fourth Proportional to 83,745.61, 125,635.70 and 27,589.12

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Solution

The fourth proportional to 83,745.61, 125,635.70 and 27,589.12 is: 41,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,745.61 : 125,635.70 = 27,589.12 : x
  2. Step 2: Convert to fraction form
    83,745.61/125,635.70 = 27,589.12/x
  3. Step 3: Cross multiply
    83,745.61x = 125,635.70 × 27,589.12
  4. Step 4: Simplify right side
    83,745.61x = 3,466,178,403.58
  5. Step 5: Solve for x
    x = 3,466,178,403.58/83,745.61
  6. Step 6: Final answer
    x = 41,389.37

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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.