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Finding the Fourth Proportional to 32,149.80, 48,195.90 and 21,061.80

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Solution

The fourth proportional to 32,149.80, 48,195.90 and 21,061.80 is: 31,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,149.80 : 48,195.90 = 21,061.80 : x
  2. Step 2: Convert to fraction form
    32,149.80/48,195.90 = 21,061.80/x
  3. Step 3: Cross multiply
    32,149.80x = 48,195.90 × 21,061.80
  4. Step 4: Simplify right side
    32,149.80x = 1,015,092,406.62
  5. Step 5: Solve for x
    x = 1,015,092,406.62/32,149.80
  6. Step 6: Final answer
    x = 31,573.83

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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.