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Finding the Fourth Proportional to 7,449.81, 11,154.72 and 3,932.52

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Solution

The fourth proportional to 7,449.81, 11,154.72 and 3,932.52 is: 5,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.81 : 11,154.72 = 3,932.52 : x
  2. Step 2: Convert to fraction form
    7,449.81/11,154.72 = 3,932.52/x
  3. Step 3: Cross multiply
    7,449.81x = 11,154.72 × 3,932.52
  4. Step 4: Simplify right side
    7,449.81x = 43,866,159.49
  5. Step 5: Solve for x
    x = 43,866,159.49/7,449.81
  6. Step 6: Final answer
    x = 5,888.23

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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.