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Finding the Fourth Proportional to 17,515.72, 26,250.18 and 6,412

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Solution

The fourth proportional to 17,515.72, 26,250.18 and 6,412 is: 9,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,515.72 : 26,250.18 = 6,412 : x
  2. Step 2: Convert to fraction form
    17,515.72/26,250.18 = 6,412/x
  3. Step 3: Cross multiply
    17,515.72x = 26,250.18 × 6,412
  4. Step 4: Simplify right side
    17,515.72x = 168,316,154.16
  5. Step 5: Solve for x
    x = 168,316,154.16/17,515.72
  6. Step 6: Final answer
    x = 9,609.43

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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.