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Finding the Fourth Proportional to 8,340.62, 11,514.22 and 4,803.15

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Solution

The fourth proportional to 8,340.62, 11,514.22 and 4,803.15 is: 6,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.62 : 11,514.22 = 4,803.15 : x
  2. Step 2: Convert to fraction form
    8,340.62/11,514.22 = 4,803.15/x
  3. Step 3: Cross multiply
    8,340.62x = 11,514.22 × 4,803.15
  4. Step 4: Simplify right side
    8,340.62x = 55,304,456.21
  5. Step 5: Solve for x
    x = 55,304,456.21/8,340.62
  6. Step 6: Final answer
    x = 6,630.74

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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.