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Finding the Third Proportional to 21,942 and 47,574

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Solution

The third proportional to 21,942 and 47,574 is: 103,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942 : 47,574 = 47,574 : x
  2. Step 2: Convert to fraction form
    21,942/47,574 = 47,574/x
  3. Step 3: Cross multiply
    21,942x = 47,574 × 47,574
  4. Step 4: Simplify right side
    21,942x = 2,263,285,476
  5. Step 5: Solve for x
    x = 2,263,285,476/21,942
  6. Step 6: Final answer
    x = 103,148.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.