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Finding the Fourth Proportional to 63,691.88, 95,554.14 and 45,009

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Solution

The fourth proportional to 63,691.88, 95,554.14 and 45,009 is: 67,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,691.88 : 95,554.14 = 45,009 : x
  2. Step 2: Convert to fraction form
    63,691.88/95,554.14 = 45,009/x
  3. Step 3: Cross multiply
    63,691.88x = 95,554.14 × 45,009
  4. Step 4: Simplify right side
    63,691.88x = 4,300,796,287.26
  5. Step 5: Solve for x
    x = 4,300,796,287.26/63,691.88
  6. Step 6: Final answer
    x = 67,525.03

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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.