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Finding the Fourth Proportional to 6,206.20, 8,979.55 and 6,206.20

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Solution

The fourth proportional to 6,206.20, 8,979.55 and 6,206.20 is: 8,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,206.20 : 8,979.55 = 6,206.20 : x
  2. Step 2: Convert to fraction form
    6,206.20/8,979.55 = 6,206.20/x
  3. Step 3: Cross multiply
    6,206.20x = 8,979.55 × 6,206.20
  4. Step 4: Simplify right side
    6,206.20x = 55,728,883.21
  5. Step 5: Solve for x
    x = 55,728,883.21/6,206.20
  6. Step 6: Final answer
    x = 8,979.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.