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Finding the Fourth Proportional to 6,691,648.80, 10,026,392.40 and 3,846,799.20

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Solution

The fourth proportional to 6,691,648.80, 10,026,392.40 and 3,846,799.20 is: 5,763,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691,648.80 : 10,026,392.40 = 3,846,799.20 : x
  2. Step 2: Convert to fraction form
    6,691,648.80/10,026,392.40 = 3,846,799.20/x
  3. Step 3: Cross multiply
    6,691,648.80x = 10,026,392.40 × 3,846,799.20
  4. Step 4: Simplify right side
    6,691,648.80x = 38,569,518,263,206.09
  5. Step 5: Solve for x
    x = 38,569,518,263,206.09/6,691,648.80
  6. Step 6: Final answer
    x = 5,763,828.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.