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Finding the Third Proportional to 52,871 and 77,845

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Solution

The third proportional to 52,871 and 77,845 is: 114,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,871 : 77,845 = 77,845 : x
  2. Step 2: Convert to fraction form
    52,871/77,845 = 77,845/x
  3. Step 3: Cross multiply
    52,871x = 77,845 × 77,845
  4. Step 4: Simplify right side
    52,871x = 6,059,844,025
  5. Step 5: Solve for x
    x = 6,059,844,025/52,871
  6. Step 6: Final answer
    x = 114,615.65

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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.