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Finding the Third Proportional to 39,984 and 61,200

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Solution

The third proportional to 39,984 and 61,200 is: 93,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984 : 61,200 = 61,200 : x
  2. Step 2: Convert to fraction form
    39,984/61,200 = 61,200/x
  3. Step 3: Cross multiply
    39,984x = 61,200 × 61,200
  4. Step 4: Simplify right side
    39,984x = 3,745,440,000
  5. Step 5: Solve for x
    x = 3,745,440,000/39,984
  6. Step 6: Final answer
    x = 93,673.47

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.