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Finding the Third Proportional to 9,048 and 15,990

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Solution

The third proportional to 9,048 and 15,990 is: 28,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,048 : 15,990 = 15,990 : x
  2. Step 2: Convert to fraction form
    9,048/15,990 = 15,990/x
  3. Step 3: Cross multiply
    9,048x = 15,990 × 15,990
  4. Step 4: Simplify right side
    9,048x = 255,680,100
  5. Step 5: Solve for x
    x = 255,680,100/9,048
  6. Step 6: Final answer
    x = 28,258.19

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.