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Finding the Fourth Proportional to 63,989.60, 88,299.52 and 35,697.11

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Solution

The fourth proportional to 63,989.60, 88,299.52 and 35,697.11 is: 49,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.60 : 88,299.52 = 35,697.11 : x
  2. Step 2: Convert to fraction form
    63,989.60/88,299.52 = 35,697.11/x
  3. Step 3: Cross multiply
    63,989.60x = 88,299.52 × 35,697.11
  4. Step 4: Simplify right side
    63,989.60x = 3,152,037,147.65
  5. Step 5: Solve for x
    x = 3,152,037,147.65/63,989.60
  6. Step 6: Final answer
    x = 49,258.59

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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.