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Finding the Fourth Proportional to 2,011.52, 3,016.70 and 694.93

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Solution

The fourth proportional to 2,011.52, 3,016.70 and 694.93 is: 1,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.52 : 3,016.70 = 694.93 : x
  2. Step 2: Convert to fraction form
    2,011.52/3,016.70 = 694.93/x
  3. Step 3: Cross multiply
    2,011.52x = 3,016.70 × 694.93
  4. Step 4: Simplify right side
    2,011.52x = 2,096,395.33
  5. Step 5: Solve for x
    x = 2,096,395.33/2,011.52
  6. Step 6: Final answer
    x = 1,042.19

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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.