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Finding the Fourth Proportional to 63,786.72, 88,025.04 and 35,491.92

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Solution

The fourth proportional to 63,786.72, 88,025.04 and 35,491.92 is: 48,978.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,786.72 : 88,025.04 = 35,491.92 : x
  2. Step 2: Convert to fraction form
    63,786.72/88,025.04 = 35,491.92/x
  3. Step 3: Cross multiply
    63,786.72x = 88,025.04 × 35,491.92
  4. Step 4: Simplify right side
    63,786.72x = 3,124,177,677.68
  5. Step 5: Solve for x
    x = 3,124,177,677.68/63,786.72
  6. Step 6: Final answer
    x = 48,978.50

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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.