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Finding the Fourth Proportional to 2,382.96, 3,576.06 and 903.42

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Solution

The fourth proportional to 2,382.96, 3,576.06 and 903.42 is: 1,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.96 : 3,576.06 = 903.42 : x
  2. Step 2: Convert to fraction form
    2,382.96/3,576.06 = 903.42/x
  3. Step 3: Cross multiply
    2,382.96x = 3,576.06 × 903.42
  4. Step 4: Simplify right side
    2,382.96x = 3,230,684.13
  5. Step 5: Solve for x
    x = 3,230,684.13/2,382.96
  6. Step 6: Final answer
    x = 1,355.74

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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.