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Finding the Third Proportional to 12,774.38 and 27,918

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Solution

The third proportional to 12,774.38 and 27,918 is: 61,013.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774.38 : 27,918 = 27,918 : x
  2. Step 2: Convert to fraction form
    12,774.38/27,918 = 27,918/x
  3. Step 3: Cross multiply
    12,774.38x = 27,918 × 27,918
  4. Step 4: Simplify right side
    12,774.38x = 779,414,724
  5. Step 5: Solve for x
    x = 779,414,724/12,774.38
  6. Step 6: Final answer
    x = 61,013.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.