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Finding the Third Proportional to 25,990.88 and 39,171.09

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Solution

The third proportional to 25,990.88 and 39,171.09 is: 59,035.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.88 : 39,171.09 = 39,171.09 : x
  2. Step 2: Convert to fraction form
    25,990.88/39,171.09 = 39,171.09/x
  3. Step 3: Cross multiply
    25,990.88x = 39,171.09 × 39,171.09
  4. Step 4: Simplify right side
    25,990.88x = 1,534,374,585.57
  5. Step 5: Solve for x
    x = 1,534,374,585.57/25,990.88
  6. Step 6: Final answer
    x = 59,035.13

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1.5x scale

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.