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Finding the Third Proportional to 26,072 and 40,389

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Solution

The third proportional to 26,072 and 40,389 is: 62,567.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,072 : 40,389 = 40,389 : x
  2. Step 2: Convert to fraction form
    26,072/40,389 = 40,389/x
  3. Step 3: Cross multiply
    26,072x = 40,389 × 40,389
  4. Step 4: Simplify right side
    26,072x = 1,631,271,321
  5. Step 5: Solve for x
    x = 1,631,271,321/26,072
  6. Step 6: Final answer
    x = 62,567.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.