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Finding the Third Proportional to 18,479 and 39,263

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Solution

The third proportional to 18,479 and 39,263 is: 83,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479 : 39,263 = 39,263 : x
  2. Step 2: Convert to fraction form
    18,479/39,263 = 39,263/x
  3. Step 3: Cross multiply
    18,479x = 39,263 × 39,263
  4. Step 4: Simplify right side
    18,479x = 1,541,583,169
  5. Step 5: Solve for x
    x = 1,541,583,169/18,479
  6. Step 6: Final answer
    x = 83,423.52

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.