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Finding the Fourth Proportional to 17,242.92, 25,857.90 and 5,553

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Solution

The fourth proportional to 17,242.92, 25,857.90 and 5,553 is: 8,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,242.92 : 25,857.90 = 5,553 : x
  2. Step 2: Convert to fraction form
    17,242.92/25,857.90 = 5,553/x
  3. Step 3: Cross multiply
    17,242.92x = 25,857.90 × 5,553
  4. Step 4: Simplify right side
    17,242.92x = 143,588,918.70
  5. Step 5: Solve for x
    x = 143,588,918.70/17,242.92
  6. Step 6: Final answer
    x = 8,327.41

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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.