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Finding the Fourth Proportional to 3,906,392.64, 5,854,865.04 and 2,012,100.72

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Solution

The fourth proportional to 3,906,392.64, 5,854,865.04 and 2,012,100.72 is: 3,015,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906,392.64 : 5,854,865.04 = 2,012,100.72 : x
  2. Step 2: Convert to fraction form
    3,906,392.64/5,854,865.04 = 2,012,100.72/x
  3. Step 3: Cross multiply
    3,906,392.64x = 5,854,865.04 × 2,012,100.72
  4. Step 4: Simplify right side
    3,906,392.64x = 11,780,578,162,486.83
  5. Step 5: Solve for x
    x = 11,780,578,162,486.83/3,906,392.64
  6. Step 6: Final answer
    x = 3,015,717.89

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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.