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Finding the Fourth Proportional to 4,969.52, 7,455.76 and 2,048

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Solution

The fourth proportional to 4,969.52, 7,455.76 and 2,048 is: 3,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.52 : 7,455.76 = 2,048 : x
  2. Step 2: Convert to fraction form
    4,969.52/7,455.76 = 2,048/x
  3. Step 3: Cross multiply
    4,969.52x = 7,455.76 × 2,048
  4. Step 4: Simplify right side
    4,969.52x = 15,269,396.48
  5. Step 5: Solve for x
    x = 15,269,396.48/4,969.52
  6. Step 6: Final answer
    x = 3,072.61

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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.