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Finding the Third Proportional to 3,558.15 and 4,976.28

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Solution

The third proportional to 3,558.15 and 4,976.28 is: 6,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.15 : 4,976.28 = 4,976.28 : x
  2. Step 2: Convert to fraction form
    3,558.15/4,976.28 = 4,976.28/x
  3. Step 3: Cross multiply
    3,558.15x = 4,976.28 × 4,976.28
  4. Step 4: Simplify right side
    3,558.15x = 24,763,355.64
  5. Step 5: Solve for x
    x = 24,763,355.64/3,558.15
  6. Step 6: Final answer
    x = 6,959.62

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.