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Finding the Third Proportional to 15,701 and 22,380

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Solution

The third proportional to 15,701 and 22,380 is: 31,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701 : 22,380 = 22,380 : x
  2. Step 2: Convert to fraction form
    15,701/22,380 = 22,380/x
  3. Step 3: Cross multiply
    15,701x = 22,380 × 22,380
  4. Step 4: Simplify right side
    15,701x = 500,864,400
  5. Step 5: Solve for x
    x = 500,864,400/15,701
  6. Step 6: Final answer
    x = 31,900.16

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.