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Finding the Fourth Proportional to 7,443.91, 11,165.87 and 3,536.47

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Solution

The fourth proportional to 7,443.91, 11,165.87 and 3,536.47 is: 5,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.91 : 11,165.87 = 3,536.47 : x
  2. Step 2: Convert to fraction form
    7,443.91/11,165.87 = 3,536.47/x
  3. Step 3: Cross multiply
    7,443.91x = 11,165.87 × 3,536.47
  4. Step 4: Simplify right side
    7,443.91x = 39,487,764.28
  5. Step 5: Solve for x
    x = 39,487,764.28/7,443.91
  6. Step 6: Final answer
    x = 5,304.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.