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Finding the Fourth Proportional to 7,374.57, 11,062.46 and 2,991.46

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Solution

The fourth proportional to 7,374.57, 11,062.46 and 2,991.46 is: 4,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.57 : 11,062.46 = 2,991.46 : x
  2. Step 2: Convert to fraction form
    7,374.57/11,062.46 = 2,991.46/x
  3. Step 3: Cross multiply
    7,374.57x = 11,062.46 × 2,991.46
  4. Step 4: Simplify right side
    7,374.57x = 33,092,871.84
  5. Step 5: Solve for x
    x = 33,092,871.84/7,374.57
  6. Step 6: Final answer
    x = 4,487.43

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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.