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Finding the Fourth Proportional to 2,456.72, 3,683.92 and 895.64

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Solution

The fourth proportional to 2,456.72, 3,683.92 and 895.64 is: 1,343.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.72 : 3,683.92 = 895.64 : x
  2. Step 2: Convert to fraction form
    2,456.72/3,683.92 = 895.64/x
  3. Step 3: Cross multiply
    2,456.72x = 3,683.92 × 895.64
  4. Step 4: Simplify right side
    2,456.72x = 3,299,466.11
  5. Step 5: Solve for x
    x = 3,299,466.11/2,456.72
  6. Step 6: Final answer
    x = 1,343.04

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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.