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Finding the Fourth Proportional to 4,872,672.65, 6,724,206.81 and 2,697,169.11

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Solution

The fourth proportional to 4,872,672.65, 6,724,206.81 and 2,697,169.11 is: 3,722,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872,672.65 : 6,724,206.81 = 2,697,169.11 : x
  2. Step 2: Convert to fraction form
    4,872,672.65/6,724,206.81 = 2,697,169.11/x
  3. Step 3: Cross multiply
    4,872,672.65x = 6,724,206.81 × 2,697,169.11
  4. Step 4: Simplify right side
    4,872,672.65x = 18,136,322,897,183.64
  5. Step 5: Solve for x
    x = 18,136,322,897,183.64/4,872,672.65
  6. Step 6: Final answer
    x = 3,722,048.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.