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Finding the Fourth Proportional to 8,676.32, 11,961.41 and 5,488.02

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Solution

The fourth proportional to 8,676.32, 11,961.41 and 5,488.02 is: 7,565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.32 : 11,961.41 = 5,488.02 : x
  2. Step 2: Convert to fraction form
    8,676.32/11,961.41 = 5,488.02/x
  3. Step 3: Cross multiply
    8,676.32x = 11,961.41 × 5,488.02
  4. Step 4: Simplify right side
    8,676.32x = 65,644,429.87
  5. Step 5: Solve for x
    x = 65,644,429.87/8,676.32
  6. Step 6: Final answer
    x = 7,565.93

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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.