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Finding the Third Proportional to 56,624 and 79,216

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Solution

The third proportional to 56,624 and 79,216 is: 110,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,624 : 79,216 = 79,216 : x
  2. Step 2: Convert to fraction form
    56,624/79,216 = 79,216/x
  3. Step 3: Cross multiply
    56,624x = 79,216 × 79,216
  4. Step 4: Simplify right side
    56,624x = 6,275,174,656
  5. Step 5: Solve for x
    x = 6,275,174,656/56,624
  6. Step 6: Final answer
    x = 110,821.82

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.