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Finding the Fourth Proportional to 6,343.11, 8,752.59 and 3,653.91

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Solution

The fourth proportional to 6,343.11, 8,752.59 and 3,653.91 is: 5,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.11 : 8,752.59 = 3,653.91 : x
  2. Step 2: Convert to fraction form
    6,343.11/8,752.59 = 3,653.91/x
  3. Step 3: Cross multiply
    6,343.11x = 8,752.59 × 3,653.91
  4. Step 4: Simplify right side
    6,343.11x = 31,981,176.13
  5. Step 5: Solve for x
    x = 31,981,176.13/6,343.11
  6. Step 6: Final answer
    x = 5,041.88

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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.