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Finding the Fourth Proportional to 5,248.65, 7,243.05 and 2,858.55

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Solution

The fourth proportional to 5,248.65, 7,243.05 and 2,858.55 is: 3,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.65 : 7,243.05 = 2,858.55 : x
  2. Step 2: Convert to fraction form
    5,248.65/7,243.05 = 2,858.55/x
  3. Step 3: Cross multiply
    5,248.65x = 7,243.05 × 2,858.55
  4. Step 4: Simplify right side
    5,248.65x = 20,704,620.58
  5. Step 5: Solve for x
    x = 20,704,620.58/5,248.65
  6. Step 6: Final answer
    x = 3,944.75

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1.5x scale

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.