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Finding the Fourth Proportional to 87,070.65, 130,606.13 and 23,891.64

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Solution

The fourth proportional to 87,070.65, 130,606.13 and 23,891.64 is: 35,837.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,070.65 : 130,606.13 = 23,891.64 : x
  2. Step 2: Convert to fraction form
    87,070.65/130,606.13 = 23,891.64/x
  3. Step 3: Cross multiply
    87,070.65x = 130,606.13 × 23,891.64
  4. Step 4: Simplify right side
    87,070.65x = 3,120,394,520.30
  5. Step 5: Solve for x
    x = 3,120,394,520.30/87,070.65
  6. Step 6: Final answer
    x = 35,837.50

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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.