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Finding the Fourth Proportional to 3,961.68, 5,492.13 and 3,751

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Solution

The fourth proportional to 3,961.68, 5,492.13 and 3,751 is: 5,200.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.68 : 5,492.13 = 3,751 : x
  2. Step 2: Convert to fraction form
    3,961.68/5,492.13 = 3,751/x
  3. Step 3: Cross multiply
    3,961.68x = 5,492.13 × 3,751
  4. Step 4: Simplify right side
    3,961.68x = 20,600,979.63
  5. Step 5: Solve for x
    x = 20,600,979.63/3,961.68
  6. Step 6: Final answer
    x = 5,200.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.