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Finding the Fourth Proportional to 2,013.13, 3,018.95 and 696.54

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Solution

The fourth proportional to 2,013.13, 3,018.95 and 696.54 is: 1,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.13 : 3,018.95 = 696.54 : x
  2. Step 2: Convert to fraction form
    2,013.13/3,018.95 = 696.54/x
  3. Step 3: Cross multiply
    2,013.13x = 3,018.95 × 696.54
  4. Step 4: Simplify right side
    2,013.13x = 2,102,825.31
  5. Step 5: Solve for x
    x = 2,102,825.31/2,013.13
  6. Step 6: Final answer
    x = 1,044.56

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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.