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Finding the Fourth Proportional to 17,998.76, 26,975.10 and 15,772.52

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Solution

The fourth proportional to 17,998.76, 26,975.10 and 15,772.52 is: 23,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.76 : 26,975.10 = 15,772.52 : x
  2. Step 2: Convert to fraction form
    17,998.76/26,975.10 = 15,772.52/x
  3. Step 3: Cross multiply
    17,998.76x = 26,975.10 × 15,772.52
  4. Step 4: Simplify right side
    17,998.76x = 425,465,304.25
  5. Step 5: Solve for x
    x = 425,465,304.25/17,998.76
  6. Step 6: Final answer
    x = 23,638.59

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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.