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Finding the Fourth Proportional to 7,951.56, 11,927.16 and 4,685.38

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Solution

The fourth proportional to 7,951.56, 11,927.16 and 4,685.38 is: 7,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.56 : 11,927.16 = 4,685.38 : x
  2. Step 2: Convert to fraction form
    7,951.56/11,927.16 = 4,685.38/x
  3. Step 3: Cross multiply
    7,951.56x = 11,927.16 × 4,685.38
  4. Step 4: Simplify right side
    7,951.56x = 55,883,276.92
  5. Step 5: Solve for x
    x = 55,883,276.92/7,951.56
  6. Step 6: Final answer
    x = 7,027.96

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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.