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Finding the Fourth Proportional to 17,301.87, 25,918.65 and 8,987.31

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Solution

The fourth proportional to 17,301.87, 25,918.65 and 8,987.31 is: 13,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,301.87 : 25,918.65 = 8,987.31 : x
  2. Step 2: Convert to fraction form
    17,301.87/25,918.65 = 8,987.31/x
  3. Step 3: Cross multiply
    17,301.87x = 25,918.65 × 8,987.31
  4. Step 4: Simplify right side
    17,301.87x = 232,938,942.33
  5. Step 5: Solve for x
    x = 232,938,942.33/17,301.87
  6. Step 6: Final answer
    x = 13,463.22

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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.