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Finding the Fourth Proportional to 3,591.54, 5,388.12 and 1,401.71

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Solution

The fourth proportional to 3,591.54, 5,388.12 and 1,401.71 is: 2,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.54 : 5,388.12 = 1,401.71 : x
  2. Step 2: Convert to fraction form
    3,591.54/5,388.12 = 1,401.71/x
  3. Step 3: Cross multiply
    3,591.54x = 5,388.12 × 1,401.71
  4. Step 4: Simplify right side
    3,591.54x = 7,552,554.74
  5. Step 5: Solve for x
    x = 7,552,554.74/3,591.54
  6. Step 6: Final answer
    x = 2,102.87

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1.5x scale

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.