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Finding the Third Proportional to 15,990.75 and 26,902.13

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Solution

The third proportional to 15,990.75 and 26,902.13 is: 45,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.75 : 26,902.13 = 26,902.13 : x
  2. Step 2: Convert to fraction form
    15,990.75/26,902.13 = 26,902.13/x
  3. Step 3: Cross multiply
    15,990.75x = 26,902.13 × 26,902.13
  4. Step 4: Simplify right side
    15,990.75x = 723,724,329.52
  5. Step 5: Solve for x
    x = 723,724,329.52/15,990.75
  6. Step 6: Final answer
    x = 45,258.94

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.