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Finding the Third Proportional to 15,178 and 22,271

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Solution

The third proportional to 15,178 and 22,271 is: 32,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178 : 22,271 = 22,271 : x
  2. Step 2: Convert to fraction form
    15,178/22,271 = 22,271/x
  3. Step 3: Cross multiply
    15,178x = 22,271 × 22,271
  4. Step 4: Simplify right side
    15,178x = 495,997,441
  5. Step 5: Solve for x
    x = 495,997,441/15,178
  6. Step 6: Final answer
    x = 32,678.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.