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Finding the Fourth Proportional to 3,744.72, 5,169 and 2,347.56

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Solution

The fourth proportional to 3,744.72, 5,169 and 2,347.56 is: 3,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.72 : 5,169 = 2,347.56 : x
  2. Step 2: Convert to fraction form
    3,744.72/5,169 = 2,347.56/x
  3. Step 3: Cross multiply
    3,744.72x = 5,169 × 2,347.56
  4. Step 4: Simplify right side
    3,744.72x = 12,134,537.64
  5. Step 5: Solve for x
    x = 12,134,537.64/3,744.72
  6. Step 6: Final answer
    x = 3,240.44

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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.