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Finding the Third Proportional to 10,570 and 15,270

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Solution

The third proportional to 10,570 and 15,270 is: 22,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,570 : 15,270 = 15,270 : x
  2. Step 2: Convert to fraction form
    10,570/15,270 = 15,270/x
  3. Step 3: Cross multiply
    10,570x = 15,270 × 15,270
  4. Step 4: Simplify right side
    10,570x = 233,172,900
  5. Step 5: Solve for x
    x = 233,172,900/10,570
  6. Step 6: Final answer
    x = 22,059.88

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.