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Finding the Fourth Proportional to 1,093.74, 1,641.96 and 932.46

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Solution

The fourth proportional to 1,093.74, 1,641.96 and 932.46 is: 1,399.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.74 : 1,641.96 = 932.46 : x
  2. Step 2: Convert to fraction form
    1,093.74/1,641.96 = 932.46/x
  3. Step 3: Cross multiply
    1,093.74x = 1,641.96 × 932.46
  4. Step 4: Simplify right side
    1,093.74x = 1,531,062.02
  5. Step 5: Solve for x
    x = 1,531,062.02/1,093.74
  6. Step 6: Final answer
    x = 1,399.84

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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.