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Finding the Third Proportional to 5,488 and 8,445

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Solution

The third proportional to 5,488 and 8,445 is: 12,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488 : 8,445 = 8,445 : x
  2. Step 2: Convert to fraction form
    5,488/8,445 = 8,445/x
  3. Step 3: Cross multiply
    5,488x = 8,445 × 8,445
  4. Step 4: Simplify right side
    5,488x = 71,318,025
  5. Step 5: Solve for x
    x = 71,318,025/5,488
  6. Step 6: Final answer
    x = 12,995.27

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.