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Finding the Third Proportional to 9,434.75 and 12,768

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Solution

The third proportional to 9,434.75 and 12,768 is: 17,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,434.75 : 12,768 = 12,768 : x
  2. Step 2: Convert to fraction form
    9,434.75/12,768 = 12,768/x
  3. Step 3: Cross multiply
    9,434.75x = 12,768 × 12,768
  4. Step 4: Simplify right side
    9,434.75x = 163,021,824
  5. Step 5: Solve for x
    x = 163,021,824/9,434.75
  6. Step 6: Final answer
    x = 17,278.87

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.