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Finding the Fourth Proportional to 2,376.72, 3,564.64 and 732.96

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Solution

The fourth proportional to 2,376.72, 3,564.64 and 732.96 is: 1,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.72 : 3,564.64 = 732.96 : x
  2. Step 2: Convert to fraction form
    2,376.72/3,564.64 = 732.96/x
  3. Step 3: Cross multiply
    2,376.72x = 3,564.64 × 732.96
  4. Step 4: Simplify right side
    2,376.72x = 2,612,738.53
  5. Step 5: Solve for x
    x = 2,612,738.53/2,376.72
  6. Step 6: Final answer
    x = 1,099.30

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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.