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Finding the Fourth Proportional to 6,742,449.87, 9,305,491.13 and 3,802,870.37

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Solution

The fourth proportional to 6,742,449.87, 9,305,491.13 and 3,802,870.37 is: 5,248,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742,449.87 : 9,305,491.13 = 3,802,870.37 : x
  2. Step 2: Convert to fraction form
    6,742,449.87/9,305,491.13 = 3,802,870.37/x
  3. Step 3: Cross multiply
    6,742,449.87x = 9,305,491.13 × 3,802,870.37
  4. Step 4: Simplify right side
    6,742,449.87x = 35,387,576,431,033.02
  5. Step 5: Solve for x
    x = 35,387,576,431,033.02/6,742,449.87
  6. Step 6: Final answer
    x = 5,248,474.53

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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.