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Finding the Third Proportional to 56,362 and 82,911

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Solution

The third proportional to 56,362 and 82,911 is: 121,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,362 : 82,911 = 82,911 : x
  2. Step 2: Convert to fraction form
    56,362/82,911 = 82,911/x
  3. Step 3: Cross multiply
    56,362x = 82,911 × 82,911
  4. Step 4: Simplify right side
    56,362x = 6,874,233,921
  5. Step 5: Solve for x
    x = 6,874,233,921/56,362
  6. Step 6: Final answer
    x = 121,965.76

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.