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Finding the Third Proportional to 25,479 and 55,206

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Solution

The third proportional to 25,479 and 55,206 is: 119,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479 : 55,206 = 55,206 : x
  2. Step 2: Convert to fraction form
    25,479/55,206 = 55,206/x
  3. Step 3: Cross multiply
    25,479x = 55,206 × 55,206
  4. Step 4: Simplify right side
    25,479x = 3,047,702,436
  5. Step 5: Solve for x
    x = 3,047,702,436/25,479
  6. Step 6: Final answer
    x = 119,616.25

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.