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Finding the Third Proportional to 14,391 and 21,886

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Solution

The third proportional to 14,391 and 21,886 is: 33,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391 : 21,886 = 21,886 : x
  2. Step 2: Convert to fraction form
    14,391/21,886 = 21,886/x
  3. Step 3: Cross multiply
    14,391x = 21,886 × 21,886
  4. Step 4: Simplify right side
    14,391x = 478,996,996
  5. Step 5: Solve for x
    x = 478,996,996/14,391
  6. Step 6: Final answer
    x = 33,284.48

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.