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Finding the Third Proportional to 18,783 and 40,576.50

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Solution

The third proportional to 18,783 and 40,576.50 is: 87,656.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783 : 40,576.50 = 40,576.50 : x
  2. Step 2: Convert to fraction form
    18,783/40,576.50 = 40,576.50/x
  3. Step 3: Cross multiply
    18,783x = 40,576.50 × 40,576.50
  4. Step 4: Simplify right side
    18,783x = 1,646,452,352.25
  5. Step 5: Solve for x
    x = 1,646,452,352.25/18,783
  6. Step 6: Final answer
    x = 87,656.52

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.