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Finding the Fourth Proportional to 60,642.32, 90,919.68 and 25,562.80

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Solution

The fourth proportional to 60,642.32, 90,919.68 and 25,562.80 is: 38,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,642.32 : 90,919.68 = 25,562.80 : x
  2. Step 2: Convert to fraction form
    60,642.32/90,919.68 = 25,562.80/x
  3. Step 3: Cross multiply
    60,642.32x = 90,919.68 × 25,562.80
  4. Step 4: Simplify right side
    60,642.32x = 2,324,161,595.90
  5. Step 5: Solve for x
    x = 2,324,161,595.90/60,642.32
  6. Step 6: Final answer
    x = 38,325.74

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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.