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Finding the Fourth Proportional to 4,839.24, 7,242.66 and 4,253.88

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Solution

The fourth proportional to 4,839.24, 7,242.66 and 4,253.88 is: 6,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.24 : 7,242.66 = 4,253.88 : x
  2. Step 2: Convert to fraction form
    4,839.24/7,242.66 = 4,253.88/x
  3. Step 3: Cross multiply
    4,839.24x = 7,242.66 × 4,253.88
  4. Step 4: Simplify right side
    4,839.24x = 30,809,406.52
  5. Step 5: Solve for x
    x = 30,809,406.52/4,839.24
  6. Step 6: Final answer
    x = 6,366.58

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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.