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Finding the Fourth Proportional to 17,207.78, 25,821.08 and 6,678.22

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Solution

The fourth proportional to 17,207.78, 25,821.08 and 6,678.22 is: 10,020.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,207.78 : 25,821.08 = 6,678.22 : x
  2. Step 2: Convert to fraction form
    17,207.78/25,821.08 = 6,678.22/x
  3. Step 3: Cross multiply
    17,207.78x = 25,821.08 × 6,678.22
  4. Step 4: Simplify right side
    17,207.78x = 172,438,754.93
  5. Step 5: Solve for x
    x = 172,438,754.93/17,207.78
  6. Step 6: Final answer
    x = 10,020.97

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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.