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Finding the Fourth Proportional to 8,343.74, 11,514.48 and 4,617.74

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Solution

The fourth proportional to 8,343.74, 11,514.48 and 4,617.74 is: 6,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.74 : 11,514.48 = 4,617.74 : x
  2. Step 2: Convert to fraction form
    8,343.74/11,514.48 = 4,617.74/x
  3. Step 3: Cross multiply
    8,343.74x = 11,514.48 × 4,617.74
  4. Step 4: Simplify right side
    8,343.74x = 53,170,874.88
  5. Step 5: Solve for x
    x = 53,170,874.88/8,343.74
  6. Step 6: Final answer
    x = 6,372.55

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Half scale
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Double scale
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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.