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Finding the Third Proportional to 9,378 and 14,415

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Solution

The third proportional to 9,378 and 14,415 is: 22,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378 : 14,415 = 14,415 : x
  2. Step 2: Convert to fraction form
    9,378/14,415 = 14,415/x
  3. Step 3: Cross multiply
    9,378x = 14,415 × 14,415
  4. Step 4: Simplify right side
    9,378x = 207,792,225
  5. Step 5: Solve for x
    x = 207,792,225/9,378
  6. Step 6: Final answer
    x = 22,157.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.