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Finding the Third Proportional to 6,230 and 8,724

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Solution

The third proportional to 6,230 and 8,724 is: 12,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,230 : 8,724 = 8,724 : x
  2. Step 2: Convert to fraction form
    6,230/8,724 = 8,724/x
  3. Step 3: Cross multiply
    6,230x = 8,724 × 8,724
  4. Step 4: Simplify right side
    6,230x = 76,108,176
  5. Step 5: Solve for x
    x = 76,108,176/6,230
  6. Step 6: Final answer
    x = 12,216.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.