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Finding the Fourth Proportional to 5,248.37, 7,242.14 and 2,979.56

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Solution

The fourth proportional to 5,248.37, 7,242.14 and 2,979.56 is: 4,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.37 : 7,242.14 = 2,979.56 : x
  2. Step 2: Convert to fraction form
    5,248.37/7,242.14 = 2,979.56/x
  3. Step 3: Cross multiply
    5,248.37x = 7,242.14 × 2,979.56
  4. Step 4: Simplify right side
    5,248.37x = 21,578,375.76
  5. Step 5: Solve for x
    x = 21,578,375.76/5,248.37
  6. Step 6: Final answer
    x = 4,111.44

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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.