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Finding the Fourth Proportional to 6,769.20, 10,132.20 and 6,553.20

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Solution

The fourth proportional to 6,769.20, 10,132.20 and 6,553.20 is: 9,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,769.20 : 10,132.20 = 6,553.20 : x
  2. Step 2: Convert to fraction form
    6,769.20/10,132.20 = 6,553.20/x
  3. Step 3: Cross multiply
    6,769.20x = 10,132.20 × 6,553.20
  4. Step 4: Simplify right side
    6,769.20x = 66,398,333.04
  5. Step 5: Solve for x
    x = 66,398,333.04/6,769.20
  6. Step 6: Final answer
    x = 9,808.89

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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.