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Finding the Fourth Proportional to 2,932.16, 4,398.29 and 957.79

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Solution

The fourth proportional to 2,932.16, 4,398.29 and 957.79 is: 1,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.16 : 4,398.29 = 957.79 : x
  2. Step 2: Convert to fraction form
    2,932.16/4,398.29 = 957.79/x
  3. Step 3: Cross multiply
    2,932.16x = 4,398.29 × 957.79
  4. Step 4: Simplify right side
    2,932.16x = 4,212,651.83
  5. Step 5: Solve for x
    x = 4,212,651.83/2,932.16
  6. Step 6: Final answer
    x = 1,436.71

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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.