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Finding the Third Proportional to 38,639 and 61,230

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Solution

The third proportional to 38,639 and 61,230 is: 97,029.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639 : 61,230 = 61,230 : x
  2. Step 2: Convert to fraction form
    38,639/61,230 = 61,230/x
  3. Step 3: Cross multiply
    38,639x = 61,230 × 61,230
  4. Step 4: Simplify right side
    38,639x = 3,749,112,900
  5. Step 5: Solve for x
    x = 3,749,112,900/38,639
  6. Step 6: Final answer
    x = 97,029.24

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.