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Finding the Fourth Proportional to 7,896.76, 11,844.18 and 2,702.20

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Solution

The fourth proportional to 7,896.76, 11,844.18 and 2,702.20 is: 4,052.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.76 : 11,844.18 = 2,702.20 : x
  2. Step 2: Convert to fraction form
    7,896.76/11,844.18 = 2,702.20/x
  3. Step 3: Cross multiply
    7,896.76x = 11,844.18 × 2,702.20
  4. Step 4: Simplify right side
    7,896.76x = 32,005,343.20
  5. Step 5: Solve for x
    x = 32,005,343.20/7,896.76
  6. Step 6: Final answer
    x = 4,052.97

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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.