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Finding the Third Proportional to 39,072 and 52,416

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Solution

The third proportional to 39,072 and 52,416 is: 70,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072 : 52,416 = 52,416 : x
  2. Step 2: Convert to fraction form
    39,072/52,416 = 52,416/x
  3. Step 3: Cross multiply
    39,072x = 52,416 × 52,416
  4. Step 4: Simplify right side
    39,072x = 2,747,437,056
  5. Step 5: Solve for x
    x = 2,747,437,056/39,072
  6. Step 6: Final answer
    x = 70,317.29

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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.