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Finding the Third Proportional to 4,243 and 9,113

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Solution

The third proportional to 4,243 and 9,113 is: 19,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243 : 9,113 = 9,113 : x
  2. Step 2: Convert to fraction form
    4,243/9,113 = 9,113/x
  3. Step 3: Cross multiply
    4,243x = 9,113 × 9,113
  4. Step 4: Simplify right side
    4,243x = 83,046,769
  5. Step 5: Solve for x
    x = 83,046,769/4,243
  6. Step 6: Final answer
    x = 19,572.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.