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Finding the Fourth Proportional to 22,918.67, 34,378.04 and 6,278.85

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Solution

The fourth proportional to 22,918.67, 34,378.04 and 6,278.85 is: 9,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.67 : 34,378.04 = 6,278.85 : x
  2. Step 2: Convert to fraction form
    22,918.67/34,378.04 = 6,278.85/x
  3. Step 3: Cross multiply
    22,918.67x = 34,378.04 × 6,278.85
  4. Step 4: Simplify right side
    22,918.67x = 215,854,556.45
  5. Step 5: Solve for x
    x = 215,854,556.45/22,918.67
  6. Step 6: Final answer
    x = 9,418.28

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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.