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Finding the Fourth Proportional to 6,616.28, 9,928.35 and 2,669.43

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Solution

The fourth proportional to 6,616.28, 9,928.35 and 2,669.43 is: 4,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.28 : 9,928.35 = 2,669.43 : x
  2. Step 2: Convert to fraction form
    6,616.28/9,928.35 = 2,669.43/x
  3. Step 3: Cross multiply
    6,616.28x = 9,928.35 × 2,669.43
  4. Step 4: Simplify right side
    6,616.28x = 26,503,037.14
  5. Step 5: Solve for x
    x = 26,503,037.14/6,616.28
  6. Step 6: Final answer
    x = 4,005.73

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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.