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Finding the Fourth Proportional to 5,928.24, 8,891.28 and 2,638.56

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Solution

The fourth proportional to 5,928.24, 8,891.28 and 2,638.56 is: 3,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.24 : 8,891.28 = 2,638.56 : x
  2. Step 2: Convert to fraction form
    5,928.24/8,891.28 = 2,638.56/x
  3. Step 3: Cross multiply
    5,928.24x = 8,891.28 × 2,638.56
  4. Step 4: Simplify right side
    5,928.24x = 23,460,175.76
  5. Step 5: Solve for x
    x = 23,460,175.76/5,928.24
  6. Step 6: Final answer
    x = 3,957.36

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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.