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Finding the Fourth Proportional to 17,217.47, 25,805.42 and 8,892.93

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Solution

The fourth proportional to 17,217.47, 25,805.42 and 8,892.93 is: 13,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,217.47 : 25,805.42 = 8,892.93 : x
  2. Step 2: Convert to fraction form
    17,217.47/25,805.42 = 8,892.93/x
  3. Step 3: Cross multiply
    17,217.47x = 25,805.42 × 8,892.93
  4. Step 4: Simplify right side
    17,217.47x = 229,485,749.22
  5. Step 5: Solve for x
    x = 229,485,749.22/17,217.47
  6. Step 6: Final answer
    x = 13,328.66

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1.5x scale

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.