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Finding the Fourth Proportional to 63,786.70, 88,023.54 and 35,491.78

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Solution

The fourth proportional to 63,786.70, 88,023.54 and 35,491.78 is: 48,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,786.70 : 88,023.54 = 35,491.78 : x
  2. Step 2: Convert to fraction form
    63,786.70/88,023.54 = 35,491.78/x
  3. Step 3: Cross multiply
    63,786.70x = 88,023.54 × 35,491.78
  4. Step 4: Simplify right side
    63,786.70x = 3,124,112,116.50
  5. Step 5: Solve for x
    x = 3,124,112,116.50/63,786.70
  6. Step 6: Final answer
    x = 48,977.48

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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.