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Finding the Third Proportional to 56,670.75 and 79,443

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Solution

The third proportional to 56,670.75 and 79,443 is: 111,365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,670.75 : 79,443 = 79,443 : x
  2. Step 2: Convert to fraction form
    56,670.75/79,443 = 79,443/x
  3. Step 3: Cross multiply
    56,670.75x = 79,443 × 79,443
  4. Step 4: Simplify right side
    56,670.75x = 6,311,190,249
  5. Step 5: Solve for x
    x = 6,311,190,249/56,670.75
  6. Step 6: Final answer
    x = 111,365.92

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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.