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Finding the Third Proportional to 11,011.50 and 15,697.13

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Solution

The third proportional to 11,011.50 and 15,697.13 is: 22,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.50 : 15,697.13 = 15,697.13 : x
  2. Step 2: Convert to fraction form
    11,011.50/15,697.13 = 15,697.13/x
  3. Step 3: Cross multiply
    11,011.50x = 15,697.13 × 15,697.13
  4. Step 4: Simplify right side
    11,011.50x = 246,399,733.27
  5. Step 5: Solve for x
    x = 246,399,733.27/11,011.50
  6. Step 6: Final answer
    x = 22,376.58

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.