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Finding the Fourth Proportional to 63,189.64, 94,728.57 and 25,781.01

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Solution

The fourth proportional to 63,189.64, 94,728.57 and 25,781.01 is: 38,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,189.64 : 94,728.57 = 25,781.01 : x
  2. Step 2: Convert to fraction form
    63,189.64/94,728.57 = 25,781.01/x
  3. Step 3: Cross multiply
    63,189.64x = 94,728.57 × 25,781.01
  4. Step 4: Simplify right side
    63,189.64x = 2,442,198,210.46
  5. Step 5: Solve for x
    x = 2,442,198,210.46/63,189.64
  6. Step 6: Final answer
    x = 38,648.71

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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.