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Finding the Fourth Proportional to 6,899.87, 9,523.06 and 4,067.08

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Solution

The fourth proportional to 6,899.87, 9,523.06 and 4,067.08 is: 5,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.87 : 9,523.06 = 4,067.08 : x
  2. Step 2: Convert to fraction form
    6,899.87/9,523.06 = 4,067.08/x
  3. Step 3: Cross multiply
    6,899.87x = 9,523.06 × 4,067.08
  4. Step 4: Simplify right side
    6,899.87x = 38,731,041.49
  5. Step 5: Solve for x
    x = 38,731,041.49/6,899.87
  6. Step 6: Final answer
    x = 5,613.30

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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.