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Finding the Third Proportional to 15,519 and 22,621.50

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Solution

The third proportional to 15,519 and 22,621.50 is: 32,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519 : 22,621.50 = 22,621.50 : x
  2. Step 2: Convert to fraction form
    15,519/22,621.50 = 22,621.50/x
  3. Step 3: Cross multiply
    15,519x = 22,621.50 × 22,621.50
  4. Step 4: Simplify right side
    15,519x = 511,732,262.25
  5. Step 5: Solve for x
    x = 511,732,262.25/15,519
  6. Step 6: Final answer
    x = 32,974.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.