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Finding the Fourth Proportional to 7,608.98, 11,412.84 and 2,991.98

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Solution

The fourth proportional to 7,608.98, 11,412.84 and 2,991.98 is: 4,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.98 : 11,412.84 = 2,991.98 : x
  2. Step 2: Convert to fraction form
    7,608.98/11,412.84 = 2,991.98/x
  3. Step 3: Cross multiply
    7,608.98x = 11,412.84 × 2,991.98
  4. Step 4: Simplify right side
    7,608.98x = 34,146,989.02
  5. Step 5: Solve for x
    x = 34,146,989.02/7,608.98
  6. Step 6: Final answer
    x = 4,487.72

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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.