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Finding the Third Proportional to 15,569 and 34,409

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Solution

The third proportional to 15,569 and 34,409 is: 76,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569 : 34,409 = 34,409 : x
  2. Step 2: Convert to fraction form
    15,569/34,409 = 34,409/x
  3. Step 3: Cross multiply
    15,569x = 34,409 × 34,409
  4. Step 4: Simplify right side
    15,569x = 1,183,979,281
  5. Step 5: Solve for x
    x = 1,183,979,281/15,569
  6. Step 6: Final answer
    x = 76,047.23

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.