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Finding the Third Proportional to 39,600 and 59,400

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Solution

The third proportional to 39,600 and 59,400 is: 89,100

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600 : 59,400 = 59,400 : x
  2. Step 2: Convert to fraction form
    39,600/59,400 = 59,400/x
  3. Step 3: Cross multiply
    39,600x = 59,400 × 59,400
  4. Step 4: Simplify right side
    39,600x = 3,528,360,000
  5. Step 5: Solve for x
    x = 3,528,360,000/39,600
  6. Step 6: Final answer
    x = 89,100

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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.