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Finding the Fourth Proportional to 40,685.48, 60,921.42 and 32,745.80

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Solution

The fourth proportional to 40,685.48, 60,921.42 and 32,745.80 is: 49,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,685.48 : 60,921.42 = 32,745.80 : x
  2. Step 2: Convert to fraction form
    40,685.48/60,921.42 = 32,745.80/x
  3. Step 3: Cross multiply
    40,685.48x = 60,921.42 × 32,745.80
  4. Step 4: Simplify right side
    40,685.48x = 1,994,920,635.04
  5. Step 5: Solve for x
    x = 1,994,920,635.04/40,685.48
  6. Step 6: Final answer
    x = 49,032.74

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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.