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Finding the Fourth Proportional to 6,006.80, 8,998.20 and 5,285.20

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Solution

The fourth proportional to 6,006.80, 8,998.20 and 5,285.20 is: 7,917.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,006.80 : 8,998.20 = 5,285.20 : x
  2. Step 2: Convert to fraction form
    6,006.80/8,998.20 = 5,285.20/x
  3. Step 3: Cross multiply
    6,006.80x = 8,998.20 × 5,285.20
  4. Step 4: Simplify right side
    6,006.80x = 47,557,286.64
  5. Step 5: Solve for x
    x = 47,557,286.64/6,006.80
  6. Step 6: Final answer
    x = 7,917.24

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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.