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Finding the Third Proportional to 1,862.37 and 2,819.18

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Solution

The third proportional to 1,862.37 and 2,819.18 is: 4,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.37 : 2,819.18 = 2,819.18 : x
  2. Step 2: Convert to fraction form
    1,862.37/2,819.18 = 2,819.18/x
  3. Step 3: Cross multiply
    1,862.37x = 2,819.18 × 2,819.18
  4. Step 4: Simplify right side
    1,862.37x = 7,947,774.11
  5. Step 5: Solve for x
    x = 7,947,774.11/1,862.37
  6. Step 6: Final answer
    x = 4,267.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.