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Finding the Third Proportional to 9,928 and 14,222

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Solution

The third proportional to 9,928 and 14,222 is: 20,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928 : 14,222 = 14,222 : x
  2. Step 2: Convert to fraction form
    9,928/14,222 = 14,222/x
  3. Step 3: Cross multiply
    9,928x = 14,222 × 14,222
  4. Step 4: Simplify right side
    9,928x = 202,265,284
  5. Step 5: Solve for x
    x = 202,265,284/9,928
  6. Step 6: Final answer
    x = 20,373.22

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.