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Finding the Fourth Proportional to 4,774.11, 7,151.52 and 2,691

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Solution

The fourth proportional to 4,774.11, 7,151.52 and 2,691 is: 4,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.11 : 7,151.52 = 2,691 : x
  2. Step 2: Convert to fraction form
    4,774.11/7,151.52 = 2,691/x
  3. Step 3: Cross multiply
    4,774.11x = 7,151.52 × 2,691
  4. Step 4: Simplify right side
    4,774.11x = 19,244,740.32
  5. Step 5: Solve for x
    x = 19,244,740.32/4,774.11
  6. Step 6: Final answer
    x = 4,031.06

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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.