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Finding the Third Proportional to 40,426.50 and 87,603

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Solution

The third proportional to 40,426.50 and 87,603 is: 189,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,426.50 : 87,603 = 87,603 : x
  2. Step 2: Convert to fraction form
    40,426.50/87,603 = 87,603/x
  3. Step 3: Cross multiply
    40,426.50x = 87,603 × 87,603
  4. Step 4: Simplify right side
    40,426.50x = 7,674,285,609
  5. Step 5: Solve for x
    x = 7,674,285,609/40,426.50
  6. Step 6: Final answer
    x = 189,833.05

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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.