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Finding the Third Proportional to 39,140 and 52,432

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Solution

The third proportional to 39,140 and 52,432 is: 70,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,140 : 52,432 = 52,432 : x
  2. Step 2: Convert to fraction form
    39,140/52,432 = 52,432/x
  3. Step 3: Cross multiply
    39,140x = 52,432 × 52,432
  4. Step 4: Simplify right side
    39,140x = 2,749,114,624
  5. Step 5: Solve for x
    x = 2,749,114,624/39,140
  6. Step 6: Final answer
    x = 70,237.98

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.