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Finding the Fourth Proportional to 6,659.26, 9,189.90 and 4,006.16

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Solution

The fourth proportional to 6,659.26, 9,189.90 and 4,006.16 is: 5,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.26 : 9,189.90 = 4,006.16 : x
  2. Step 2: Convert to fraction form
    6,659.26/9,189.90 = 4,006.16/x
  3. Step 3: Cross multiply
    6,659.26x = 9,189.90 × 4,006.16
  4. Step 4: Simplify right side
    6,659.26x = 36,816,209.78
  5. Step 5: Solve for x
    x = 36,816,209.78/6,659.26
  6. Step 6: Final answer
    x = 5,528.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.