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Finding the Fourth Proportional to 3,402.84, 5,103.90 and 1,755.12

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Solution

The fourth proportional to 3,402.84, 5,103.90 and 1,755.12 is: 2,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.84 : 5,103.90 = 1,755.12 : x
  2. Step 2: Convert to fraction form
    3,402.84/5,103.90 = 1,755.12/x
  3. Step 3: Cross multiply
    3,402.84x = 5,103.90 × 1,755.12
  4. Step 4: Simplify right side
    3,402.84x = 8,957,956.97
  5. Step 5: Solve for x
    x = 8,957,956.97/3,402.84
  6. Step 6: Final answer
    x = 2,632.49

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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.