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Finding the Fourth Proportional to 9,661.62, 13,329.84 and 6,676.38

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Solution

The fourth proportional to 9,661.62, 13,329.84 and 6,676.38 is: 9,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.62 : 13,329.84 = 6,676.38 : x
  2. Step 2: Convert to fraction form
    9,661.62/13,329.84 = 6,676.38/x
  3. Step 3: Cross multiply
    9,661.62x = 13,329.84 × 6,676.38
  4. Step 4: Simplify right side
    9,661.62x = 88,995,077.18
  5. Step 5: Solve for x
    x = 88,995,077.18/9,661.62
  6. Step 6: Final answer
    x = 9,211.20

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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.