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Finding the Third Proportional to 492.19 and 1,072.13

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Solution

The third proportional to 492.19 and 1,072.13 is: 2,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.19 : 1,072.13 = 1,072.13 : x
  2. Step 2: Convert to fraction form
    492.19/1,072.13 = 1,072.13/x
  3. Step 3: Cross multiply
    492.19x = 1,072.13 × 1,072.13
  4. Step 4: Simplify right side
    492.19x = 1,149,452.02
  5. Step 5: Solve for x
    x = 1,149,452.02/492.19
  6. Step 6: Final answer
    x = 2,335.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.