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Finding the Fourth Proportional to 63,728.86, 95,606.05 and 35,688.79

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Solution

The fourth proportional to 63,728.86, 95,606.05 and 35,688.79 is: 53,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,728.86 : 95,606.05 = 35,688.79 : x
  2. Step 2: Convert to fraction form
    63,728.86/95,606.05 = 35,688.79/x
  3. Step 3: Cross multiply
    63,728.86x = 95,606.05 × 35,688.79
  4. Step 4: Simplify right side
    63,728.86x = 3,412,064,241.18
  5. Step 5: Solve for x
    x = 3,412,064,241.18/63,728.86
  6. Step 6: Final answer
    x = 53,540.33

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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.