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Finding the Fourth Proportional to 7,235.46, 10,854.81 and 2,555.82

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Solution

The fourth proportional to 7,235.46, 10,854.81 and 2,555.82 is: 3,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.46 : 10,854.81 = 2,555.82 : x
  2. Step 2: Convert to fraction form
    7,235.46/10,854.81 = 2,555.82/x
  3. Step 3: Cross multiply
    7,235.46x = 10,854.81 × 2,555.82
  4. Step 4: Simplify right side
    7,235.46x = 27,742,940.49
  5. Step 5: Solve for x
    x = 27,742,940.49/7,235.46
  6. Step 6: Final answer
    x = 3,834.30

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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.