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Finding the Fourth Proportional to 63,765.45, 87,994.22 and 35,470.53

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Solution

The fourth proportional to 63,765.45, 87,994.22 and 35,470.53 is: 48,948.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,765.45 : 87,994.22 = 35,470.53 : x
  2. Step 2: Convert to fraction form
    63,765.45/87,994.22 = 35,470.53/x
  3. Step 3: Cross multiply
    63,765.45x = 87,994.22 × 35,470.53
  4. Step 4: Simplify right side
    63,765.45x = 3,121,201,442.98
  5. Step 5: Solve for x
    x = 3,121,201,442.98/63,765.45
  6. Step 6: Final answer
    x = 48,948.16

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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.