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Finding the Third Proportional to 56,716 and 79,477

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Solution

The third proportional to 56,716 and 79,477 is: 111,372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716 : 79,477 = 79,477 : x
  2. Step 2: Convert to fraction form
    56,716/79,477 = 79,477/x
  3. Step 3: Cross multiply
    56,716x = 79,477 × 79,477
  4. Step 4: Simplify right side
    56,716x = 6,316,593,529
  5. Step 5: Solve for x
    x = 6,316,593,529/56,716
  6. Step 6: Final answer
    x = 111,372.34

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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.