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Finding the Fourth Proportional to 7,951.70, 11,927.55 and 4,015.10

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Solution

The fourth proportional to 7,951.70, 11,927.55 and 4,015.10 is: 6,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.70 : 11,927.55 = 4,015.10 : x
  2. Step 2: Convert to fraction form
    7,951.70/11,927.55 = 4,015.10/x
  3. Step 3: Cross multiply
    7,951.70x = 11,927.55 × 4,015.10
  4. Step 4: Simplify right side
    7,951.70x = 47,890,306.01
  5. Step 5: Solve for x
    x = 47,890,306.01/7,951.70
  6. Step 6: Final answer
    x = 6,022.65

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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.