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Finding the Third Proportional to 17,518 and 40,513

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Solution

The third proportional to 17,518 and 40,513 is: 93,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,518 : 40,513 = 40,513 : x
  2. Step 2: Convert to fraction form
    17,518/40,513 = 40,513/x
  3. Step 3: Cross multiply
    17,518x = 40,513 × 40,513
  4. Step 4: Simplify right side
    17,518x = 1,641,303,169
  5. Step 5: Solve for x
    x = 1,641,303,169/17,518
  6. Step 6: Final answer
    x = 93,692.38

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.