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Finding the Third Proportional to 3,445 and 5,545

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Solution

The third proportional to 3,445 and 5,545 is: 8,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445 : 5,545 = 5,545 : x
  2. Step 2: Convert to fraction form
    3,445/5,545 = 5,545/x
  3. Step 3: Cross multiply
    3,445x = 5,545 × 5,545
  4. Step 4: Simplify right side
    3,445x = 30,747,025
  5. Step 5: Solve for x
    x = 30,747,025/3,445
  6. Step 6: Final answer
    x = 8,925.12

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.