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Finding the Fourth Proportional to 5,279.13, 7,294.82 and 5,022.90

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Solution

The fourth proportional to 5,279.13, 7,294.82 and 5,022.90 is: 6,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.13 : 7,294.82 = 5,022.90 : x
  2. Step 2: Convert to fraction form
    5,279.13/7,294.82 = 5,022.90/x
  3. Step 3: Cross multiply
    5,279.13x = 7,294.82 × 5,022.90
  4. Step 4: Simplify right side
    5,279.13x = 36,641,126.26
  5. Step 5: Solve for x
    x = 36,641,126.26/5,279.13
  6. Step 6: Final answer
    x = 6,940.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.