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Finding the Third Proportional to 56,038 and 121,408

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Solution

The third proportional to 56,038 and 121,408 is: 263,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,038 : 121,408 = 121,408 : x
  2. Step 2: Convert to fraction form
    56,038/121,408 = 121,408/x
  3. Step 3: Cross multiply
    56,038x = 121,408 × 121,408
  4. Step 4: Simplify right side
    56,038x = 14,739,902,464
  5. Step 5: Solve for x
    x = 14,739,902,464/56,038
  6. Step 6: Final answer
    x = 263,034.06

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.