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Finding the Fourth Proportional to 5,329.97, 7,984.51 and 4,394.26

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Solution

The fourth proportional to 5,329.97, 7,984.51 and 4,394.26 is: 6,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.97 : 7,984.51 = 4,394.26 : x
  2. Step 2: Convert to fraction form
    5,329.97/7,984.51 = 4,394.26/x
  3. Step 3: Cross multiply
    5,329.97x = 7,984.51 × 4,394.26
  4. Step 4: Simplify right side
    5,329.97x = 35,086,012.91
  5. Step 5: Solve for x
    x = 35,086,012.91/5,329.97
  6. Step 6: Final answer
    x = 6,582.78

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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.