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Finding the Third Proportional to 39,408 and 61,032

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Solution

The third proportional to 39,408 and 61,032 is: 94,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408 : 61,032 = 61,032 : x
  2. Step 2: Convert to fraction form
    39,408/61,032 = 61,032/x
  3. Step 3: Cross multiply
    39,408x = 61,032 × 61,032
  4. Step 4: Simplify right side
    39,408x = 3,724,905,024
  5. Step 5: Solve for x
    x = 3,724,905,024/39,408
  6. Step 6: Final answer
    x = 94,521.54

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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.