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Finding the Third Proportional to 9,278 and 14,261

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Solution

The third proportional to 9,278 and 14,261 is: 21,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278 : 14,261 = 14,261 : x
  2. Step 2: Convert to fraction form
    9,278/14,261 = 14,261/x
  3. Step 3: Cross multiply
    9,278x = 14,261 × 14,261
  4. Step 4: Simplify right side
    9,278x = 203,376,121
  5. Step 5: Solve for x
    x = 203,376,121/9,278
  6. Step 6: Final answer
    x = 21,920.25

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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.