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Finding the Fourth Proportional to 2,256.13, 3,384.20 and 956.69

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Solution

The fourth proportional to 2,256.13, 3,384.20 and 956.69 is: 1,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.13 : 3,384.20 = 956.69 : x
  2. Step 2: Convert to fraction form
    2,256.13/3,384.20 = 956.69/x
  3. Step 3: Cross multiply
    2,256.13x = 3,384.20 × 956.69
  4. Step 4: Simplify right side
    2,256.13x = 3,237,630.30
  5. Step 5: Solve for x
    x = 3,237,630.30/2,256.13
  6. Step 6: Final answer
    x = 1,435.04

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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.