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Finding the Third Proportional to 38,712 and 57,916

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Solution

The third proportional to 38,712 and 57,916 is: 86,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,712 : 57,916 = 57,916 : x
  2. Step 2: Convert to fraction form
    38,712/57,916 = 57,916/x
  3. Step 3: Cross multiply
    38,712x = 57,916 × 57,916
  4. Step 4: Simplify right side
    38,712x = 3,354,263,056
  5. Step 5: Solve for x
    x = 3,354,263,056/38,712
  6. Step 6: Final answer
    x = 86,646.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.