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Finding the Fourth Proportional to 42,615.80, 63,923.70 and 32,247.80

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Solution

The fourth proportional to 42,615.80, 63,923.70 and 32,247.80 is: 48,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.80 : 63,923.70 = 32,247.80 : x
  2. Step 2: Convert to fraction form
    42,615.80/63,923.70 = 32,247.80/x
  3. Step 3: Cross multiply
    42,615.80x = 63,923.70 × 32,247.80
  4. Step 4: Simplify right side
    42,615.80x = 2,061,398,692.86
  5. Step 5: Solve for x
    x = 2,061,398,692.86/42,615.80
  6. Step 6: Final answer
    x = 48,371.70

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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.