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Finding the Fourth Proportional to 2,756.98, 4,137 and 2,548

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Solution

The fourth proportional to 2,756.98, 4,137 and 2,548 is: 3,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.98 : 4,137 = 2,548 : x
  2. Step 2: Convert to fraction form
    2,756.98/4,137 = 2,548/x
  3. Step 3: Cross multiply
    2,756.98x = 4,137 × 2,548
  4. Step 4: Simplify right side
    2,756.98x = 10,541,076
  5. Step 5: Solve for x
    x = 10,541,076/2,756.98
  6. Step 6: Final answer
    x = 3,823.41

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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.