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Finding the Fourth Proportional to 71,832.27, 107,759.79 and 21,900.93

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Solution

The fourth proportional to 71,832.27, 107,759.79 and 21,900.93 is: 32,854.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,832.27 : 107,759.79 = 21,900.93 : x
  2. Step 2: Convert to fraction form
    71,832.27/107,759.79 = 21,900.93/x
  3. Step 3: Cross multiply
    71,832.27x = 107,759.79 × 21,900.93
  4. Step 4: Simplify right side
    71,832.27x = 2,360,039,617.60
  5. Step 5: Solve for x
    x = 2,360,039,617.60/71,832.27
  6. Step 6: Final answer
    x = 32,854.87

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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.