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Finding the Third Proportional to 7,415 and 17,723

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Solution

The third proportional to 7,415 and 17,723 is: 42,360.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415 : 17,723 = 17,723 : x
  2. Step 2: Convert to fraction form
    7,415/17,723 = 17,723/x
  3. Step 3: Cross multiply
    7,415x = 17,723 × 17,723
  4. Step 4: Simplify right side
    7,415x = 314,104,729
  5. Step 5: Solve for x
    x = 314,104,729/7,415
  6. Step 6: Final answer
    x = 42,360.72

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.