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Finding the Third Proportional to 40,719 and 87,594

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Solution

The third proportional to 40,719 and 87,594 is: 188,430.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719 : 87,594 = 87,594 : x
  2. Step 2: Convert to fraction form
    40,719/87,594 = 87,594/x
  3. Step 3: Cross multiply
    40,719x = 87,594 × 87,594
  4. Step 4: Simplify right side
    40,719x = 7,672,708,836
  5. Step 5: Solve for x
    x = 7,672,708,836/40,719
  6. Step 6: Final answer
    x = 188,430.68

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.