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Finding the Fourth Proportional to 2,939.37, 4,401.15 and 1,549.82

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Solution

The fourth proportional to 2,939.37, 4,401.15 and 1,549.82 is: 2,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.37 : 4,401.15 = 1,549.82 : x
  2. Step 2: Convert to fraction form
    2,939.37/4,401.15 = 1,549.82/x
  3. Step 3: Cross multiply
    2,939.37x = 4,401.15 × 1,549.82
  4. Step 4: Simplify right side
    2,939.37x = 6,820,968.29
  5. Step 5: Solve for x
    x = 6,820,968.29/2,939.37
  6. Step 6: Final answer
    x = 2,320.55

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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.