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Finding the Fourth Proportional to 6,759.90, 9,320.22 and 5,168.52

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Solution

The fourth proportional to 6,759.90, 9,320.22 and 5,168.52 is: 7,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.90 : 9,320.22 = 5,168.52 : x
  2. Step 2: Convert to fraction form
    6,759.90/9,320.22 = 5,168.52/x
  3. Step 3: Cross multiply
    6,759.90x = 9,320.22 × 5,168.52
  4. Step 4: Simplify right side
    6,759.90x = 48,171,743.47
  5. Step 5: Solve for x
    x = 48,171,743.47/6,759.90
  6. Step 6: Final answer
    x = 7,126.10

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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.