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Finding the Fourth Proportional to 9,266.70, 12,797.55 and 7,149.90

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Solution

The fourth proportional to 9,266.70, 12,797.55 and 7,149.90 is: 9,874.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266.70 : 12,797.55 = 7,149.90 : x
  2. Step 2: Convert to fraction form
    9,266.70/12,797.55 = 7,149.90/x
  3. Step 3: Cross multiply
    9,266.70x = 12,797.55 × 7,149.90
  4. Step 4: Simplify right side
    9,266.70x = 91,501,202.75
  5. Step 5: Solve for x
    x = 91,501,202.75/9,266.70
  6. Step 6: Final answer
    x = 9,874.19

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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.