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Finding the Third Proportional to 25,120.13 and 40,398.75

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Solution

The third proportional to 25,120.13 and 40,398.75 is: 64,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.13 : 40,398.75 = 40,398.75 : x
  2. Step 2: Convert to fraction form
    25,120.13/40,398.75 = 40,398.75/x
  3. Step 3: Cross multiply
    25,120.13x = 40,398.75 × 40,398.75
  4. Step 4: Simplify right side
    25,120.13x = 1,632,059,001.56
  5. Step 5: Solve for x
    x = 1,632,059,001.56/25,120.13
  6. Step 6: Final answer
    x = 64,970.18

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.