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Finding the Fourth Proportional to 6,868.20, 10,301.70 and 2,251.20

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Solution

The fourth proportional to 6,868.20, 10,301.70 and 2,251.20 is: 3,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.20 : 10,301.70 = 2,251.20 : x
  2. Step 2: Convert to fraction form
    6,868.20/10,301.70 = 2,251.20/x
  3. Step 3: Cross multiply
    6,868.20x = 10,301.70 × 2,251.20
  4. Step 4: Simplify right side
    6,868.20x = 23,191,187.04
  5. Step 5: Solve for x
    x = 23,191,187.04/6,868.20
  6. Step 6: Final answer
    x = 3,376.60

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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.