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Finding the Third Proportional to 15,079 and 20,836.50

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Solution

The third proportional to 15,079 and 20,836.50 is: 28,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079 : 20,836.50 = 20,836.50 : x
  2. Step 2: Convert to fraction form
    15,079/20,836.50 = 20,836.50/x
  3. Step 3: Cross multiply
    15,079x = 20,836.50 × 20,836.50
  4. Step 4: Simplify right side
    15,079x = 434,159,732.25
  5. Step 5: Solve for x
    x = 434,159,732.25/15,079
  6. Step 6: Final answer
    x = 28,792.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.