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Finding the Third Proportional to 15,400 and 32,988

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Solution

The third proportional to 15,400 and 32,988 is: 70,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400 : 32,988 = 32,988 : x
  2. Step 2: Convert to fraction form
    15,400/32,988 = 32,988/x
  3. Step 3: Cross multiply
    15,400x = 32,988 × 32,988
  4. Step 4: Simplify right side
    15,400x = 1,088,208,144
  5. Step 5: Solve for x
    x = 1,088,208,144/15,400
  6. Step 6: Final answer
    x = 70,662.87

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.