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Finding the Third Proportional to 56,817 and 120,924

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Solution

The third proportional to 56,817 and 120,924 is: 257,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,817 : 120,924 = 120,924 : x
  2. Step 2: Convert to fraction form
    56,817/120,924 = 120,924/x
  3. Step 3: Cross multiply
    56,817x = 120,924 × 120,924
  4. Step 4: Simplify right side
    56,817x = 14,622,613,776
  5. Step 5: Solve for x
    x = 14,622,613,776/56,817
  6. Step 6: Final answer
    x = 257,363.36

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.