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Finding the Third Proportional to 15,473.11 and 20,894.63

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Solution

The third proportional to 15,473.11 and 20,894.63 is: 28,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.11 : 20,894.63 = 20,894.63 : x
  2. Step 2: Convert to fraction form
    15,473.11/20,894.63 = 20,894.63/x
  3. Step 3: Cross multiply
    15,473.11x = 20,894.63 × 20,894.63
  4. Step 4: Simplify right side
    15,473.11x = 436,585,353.89
  5. Step 5: Solve for x
    x = 436,585,353.89/15,473.11
  6. Step 6: Final answer
    x = 28,215.75

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.