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Finding the Third Proportional to 14,989 and 22,381

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Solution

The third proportional to 14,989 and 22,381 is: 33,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989 : 22,381 = 22,381 : x
  2. Step 2: Convert to fraction form
    14,989/22,381 = 22,381/x
  3. Step 3: Cross multiply
    14,989x = 22,381 × 22,381
  4. Step 4: Simplify right side
    14,989x = 500,909,161
  5. Step 5: Solve for x
    x = 500,909,161/14,989
  6. Step 6: Final answer
    x = 33,418.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.