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Finding the Third Proportional to 8,765 and 19,230

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Solution

The third proportional to 8,765 and 19,230 is: 42,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765 : 19,230 = 19,230 : x
  2. Step 2: Convert to fraction form
    8,765/19,230 = 19,230/x
  3. Step 3: Cross multiply
    8,765x = 19,230 × 19,230
  4. Step 4: Simplify right side
    8,765x = 369,792,900
  5. Step 5: Solve for x
    x = 369,792,900/8,765
  6. Step 6: Final answer
    x = 42,189.72

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.