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Finding the Fourth Proportional to 4,891.35, 6,750.92 and 2,903

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Solution

The fourth proportional to 4,891.35, 6,750.92 and 2,903 is: 4,006.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.35 : 6,750.92 = 2,903 : x
  2. Step 2: Convert to fraction form
    4,891.35/6,750.92 = 2,903/x
  3. Step 3: Cross multiply
    4,891.35x = 6,750.92 × 2,903
  4. Step 4: Simplify right side
    4,891.35x = 19,597,920.76
  5. Step 5: Solve for x
    x = 19,597,920.76/4,891.35
  6. Step 6: Final answer
    x = 4,006.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.