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Finding the Fourth Proportional to 63,987.11, 95,980.65 and 34,364.20

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Solution

The fourth proportional to 63,987.11, 95,980.65 and 34,364.20 is: 51,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987.11 : 95,980.65 = 34,364.20 : x
  2. Step 2: Convert to fraction form
    63,987.11/95,980.65 = 34,364.20/x
  3. Step 3: Cross multiply
    63,987.11x = 95,980.65 × 34,364.20
  4. Step 4: Simplify right side
    63,987.11x = 3,298,298,252.73
  5. Step 5: Solve for x
    x = 3,298,298,252.73/63,987.11
  6. Step 6: Final answer
    x = 51,546.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.