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Finding the Fourth Proportional to 993.29, 1,362.02 and 958.52

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Solution

The fourth proportional to 993.29, 1,362.02 and 958.52 is: 1,314.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    993.29 : 1,362.02 = 958.52 : x
  2. Step 2: Convert to fraction form
    993.29/1,362.02 = 958.52/x
  3. Step 3: Cross multiply
    993.29x = 1,362.02 × 958.52
  4. Step 4: Simplify right side
    993.29x = 1,305,511.81
  5. Step 5: Solve for x
    x = 1,305,511.81/993.29
  6. Step 6: Final answer
    x = 1,314.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.