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Finding the Fourth Proportional to 64,463.91, 88,958.78 and 35,781.88

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Solution

The fourth proportional to 64,463.91, 88,958.78 and 35,781.88 is: 49,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,463.91 : 88,958.78 = 35,781.88 : x
  2. Step 2: Convert to fraction form
    64,463.91/88,958.78 = 35,781.88/x
  3. Step 3: Cross multiply
    64,463.91x = 88,958.78 × 35,781.88
  4. Step 4: Simplify right side
    64,463.91x = 3,183,112,390.91
  5. Step 5: Solve for x
    x = 3,183,112,390.91/64,463.91
  6. Step 6: Final answer
    x = 49,378.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.