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Finding the Third Proportional to 9,981.56 and 15,519.94

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Solution

The third proportional to 9,981.56 and 15,519.94 is: 24,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.56 : 15,519.94 = 15,519.94 : x
  2. Step 2: Convert to fraction form
    9,981.56/15,519.94 = 15,519.94/x
  3. Step 3: Cross multiply
    9,981.56x = 15,519.94 × 15,519.94
  4. Step 4: Simplify right side
    9,981.56x = 240,868,460.00
  5. Step 5: Solve for x
    x = 240,868,460.00/9,981.56
  6. Step 6: Final answer
    x = 24,131.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.