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Finding the Third Proportional to 3,940,247.85 and 8,553,066.54

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Solution

The third proportional to 3,940,247.85 and 8,553,066.54 is: 18,566,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,247.85 : 8,553,066.54 = 8,553,066.54 : x
  2. Step 2: Convert to fraction form
    3,940,247.85/8,553,066.54 = 8,553,066.54/x
  3. Step 3: Cross multiply
    3,940,247.85x = 8,553,066.54 × 8,553,066.54
  4. Step 4: Simplify right side
    3,940,247.85x = 73,154,947,221,630.58
  5. Step 5: Solve for x
    x = 73,154,947,221,630.58/3,940,247.85
  6. Step 6: Final answer
    x = 18,566,077.58

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.