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Finding the Third Proportional to 19,121.25 and 28,118.25

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Solution

The third proportional to 19,121.25 and 28,118.25 is: 41,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.25 : 28,118.25 = 28,118.25 : x
  2. Step 2: Convert to fraction form
    19,121.25/28,118.25 = 28,118.25/x
  3. Step 3: Cross multiply
    19,121.25x = 28,118.25 × 28,118.25
  4. Step 4: Simplify right side
    19,121.25x = 790,635,983.06
  5. Step 5: Solve for x
    x = 790,635,983.06/19,121.25
  6. Step 6: Final answer
    x = 41,348.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.