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Finding the Fourth Proportional to 3,951.53, 5,927.17 and 1,178.23

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Solution

The fourth proportional to 3,951.53, 5,927.17 and 1,178.23 is: 1,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.53 : 5,927.17 = 1,178.23 : x
  2. Step 2: Convert to fraction form
    3,951.53/5,927.17 = 1,178.23/x
  3. Step 3: Cross multiply
    3,951.53x = 5,927.17 × 1,178.23
  4. Step 4: Simplify right side
    3,951.53x = 6,983,533.98
  5. Step 5: Solve for x
    x = 6,983,533.98/3,951.53
  6. Step 6: Final answer
    x = 1,767.30

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Double scale
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Similar ratio
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1.5x scale

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.