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Finding the Fourth Proportional to 8,676.62, 11,975.60 and 5,655.52

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Solution

The fourth proportional to 8,676.62, 11,975.60 and 5,655.52 is: 7,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.62 : 11,975.60 = 5,655.52 : x
  2. Step 2: Convert to fraction form
    8,676.62/11,975.60 = 5,655.52/x
  3. Step 3: Cross multiply
    8,676.62x = 11,975.60 × 5,655.52
  4. Step 4: Simplify right side
    8,676.62x = 67,728,242.61
  5. Step 5: Solve for x
    x = 67,728,242.61/8,676.62
  6. Step 6: Final answer
    x = 7,805.83

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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.