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Finding the Third Proportional to 8,922 and 14,139

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Solution

The third proportional to 8,922 and 14,139 is: 22,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922 : 14,139 = 14,139 : x
  2. Step 2: Convert to fraction form
    8,922/14,139 = 14,139/x
  3. Step 3: Cross multiply
    8,922x = 14,139 × 14,139
  4. Step 4: Simplify right side
    8,922x = 199,911,321
  5. Step 5: Solve for x
    x = 199,911,321/8,922
  6. Step 6: Final answer
    x = 22,406.56

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.