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Finding the Fourth Proportional to 1,552.14, 2,141.91 and 843.96

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Solution

The fourth proportional to 1,552.14, 2,141.91 and 843.96 is: 1,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.14 : 2,141.91 = 843.96 : x
  2. Step 2: Convert to fraction form
    1,552.14/2,141.91 = 843.96/x
  3. Step 3: Cross multiply
    1,552.14x = 2,141.91 × 843.96
  4. Step 4: Simplify right side
    1,552.14x = 1,807,686.36
  5. Step 5: Solve for x
    x = 1,807,686.36/1,552.14
  6. Step 6: Final answer
    x = 1,164.64

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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.