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Finding the Third Proportional to 36,318 and 56,118

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Solution

The third proportional to 36,318 and 56,118 is: 86,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318 : 56,118 = 56,118 : x
  2. Step 2: Convert to fraction form
    36,318/56,118 = 56,118/x
  3. Step 3: Cross multiply
    36,318x = 56,118 × 56,118
  4. Step 4: Simplify right side
    36,318x = 3,149,229,924
  5. Step 5: Solve for x
    x = 3,149,229,924/36,318
  6. Step 6: Final answer
    x = 86,712.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.