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Finding the Fourth Proportional to 6,869,893.80, 10,304,840.70 and 3,468,671.40

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Solution

The fourth proportional to 6,869,893.80, 10,304,840.70 and 3,468,671.40 is: 5,203,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869,893.80 : 10,304,840.70 = 3,468,671.40 : x
  2. Step 2: Convert to fraction form
    6,869,893.80/10,304,840.70 = 3,468,671.40/x
  3. Step 3: Cross multiply
    6,869,893.80x = 10,304,840.70 × 3,468,671.40
  4. Step 4: Simplify right side
    6,869,893.80x = 35,744,106,217,645.98
  5. Step 5: Solve for x
    x = 35,744,106,217,645.98/6,869,893.80
  6. Step 6: Final answer
    x = 5,203,007.10

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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.