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Finding the Third Proportional to 40,728 and 88,416

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Solution

The third proportional to 40,728 and 88,416 is: 191,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,728 : 88,416 = 88,416 : x
  2. Step 2: Convert to fraction form
    40,728/88,416 = 88,416/x
  3. Step 3: Cross multiply
    40,728x = 88,416 × 88,416
  4. Step 4: Simplify right side
    40,728x = 7,817,389,056
  5. Step 5: Solve for x
    x = 7,817,389,056/40,728
  6. Step 6: Final answer
    x = 191,941.39

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.