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Finding the Third Proportional to 11,940 and 15,574

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Solution

The third proportional to 11,940 and 15,574 is: 20,314.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940 : 15,574 = 15,574 : x
  2. Step 2: Convert to fraction form
    11,940/15,574 = 15,574/x
  3. Step 3: Cross multiply
    11,940x = 15,574 × 15,574
  4. Step 4: Simplify right side
    11,940x = 242,549,476
  5. Step 5: Solve for x
    x = 242,549,476/11,940
  6. Step 6: Final answer
    x = 20,314.03

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.