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Finding the Fourth Proportional to 6,710.80, 10,066.20 and 4,961.20

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Solution

The fourth proportional to 6,710.80, 10,066.20 and 4,961.20 is: 7,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,710.80 : 10,066.20 = 4,961.20 : x
  2. Step 2: Convert to fraction form
    6,710.80/10,066.20 = 4,961.20/x
  3. Step 3: Cross multiply
    6,710.80x = 10,066.20 × 4,961.20
  4. Step 4: Simplify right side
    6,710.80x = 49,940,431.44
  5. Step 5: Solve for x
    x = 49,940,431.44/6,710.80
  6. Step 6: Final answer
    x = 7,441.80

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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.