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Finding the Fourth Proportional to 1,111.39, 1,532.62 and 796.10

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Solution

The fourth proportional to 1,111.39, 1,532.62 and 796.10 is: 1,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111.39 : 1,532.62 = 796.10 : x
  2. Step 2: Convert to fraction form
    1,111.39/1,532.62 = 796.10/x
  3. Step 3: Cross multiply
    1,111.39x = 1,532.62 × 796.10
  4. Step 4: Simplify right side
    1,111.39x = 1,220,112.11
  5. Step 5: Solve for x
    x = 1,220,112.11/1,111.39
  6. Step 6: Final answer
    x = 1,097.83

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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.