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Finding the Fourth Proportional to 63,987.74, 95,995.62 and 19,617.95

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Solution

The fourth proportional to 63,987.74, 95,995.62 and 19,617.95 is: 29,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987.74 : 95,995.62 = 19,617.95 : x
  2. Step 2: Convert to fraction form
    63,987.74/95,995.62 = 19,617.95/x
  3. Step 3: Cross multiply
    63,987.74x = 95,995.62 × 19,617.95
  4. Step 4: Simplify right side
    63,987.74x = 1,883,237,273.38
  5. Step 5: Solve for x
    x = 1,883,237,273.38/63,987.74
  6. Step 6: Final answer
    x = 29,431.22

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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.