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Finding the Fourth Proportional to 6,641.92, 9,168.96 and 3,846.88

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Solution

The fourth proportional to 6,641.92, 9,168.96 and 3,846.88 is: 5,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.92 : 9,168.96 = 3,846.88 : x
  2. Step 2: Convert to fraction form
    6,641.92/9,168.96 = 3,846.88/x
  3. Step 3: Cross multiply
    6,641.92x = 9,168.96 × 3,846.88
  4. Step 4: Simplify right side
    6,641.92x = 35,271,888.84
  5. Step 5: Solve for x
    x = 35,271,888.84/6,641.92
  6. Step 6: Final answer
    x = 5,310.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.