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Finding the Fourth Proportional to 63,497.12, 87,629.12 and 35,202.88

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Solution

The fourth proportional to 63,497.12, 87,629.12 and 35,202.88 is: 48,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,497.12 : 87,629.12 = 35,202.88 : x
  2. Step 2: Convert to fraction form
    63,497.12/87,629.12 = 35,202.88/x
  3. Step 3: Cross multiply
    63,497.12x = 87,629.12 × 35,202.88
  4. Step 4: Simplify right side
    63,497.12x = 3,084,797,395.87
  5. Step 5: Solve for x
    x = 3,084,797,395.87/63,497.12
  6. Step 6: Final answer
    x = 48,581.69

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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.