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Finding the Fourth Proportional to 7,168.70, 10,753.32 and 1,974.98

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Solution

The fourth proportional to 7,168.70, 10,753.32 and 1,974.98 is: 2,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.70 : 10,753.32 = 1,974.98 : x
  2. Step 2: Convert to fraction form
    7,168.70/10,753.32 = 1,974.98/x
  3. Step 3: Cross multiply
    7,168.70x = 10,753.32 × 1,974.98
  4. Step 4: Simplify right side
    7,168.70x = 21,237,591.93
  5. Step 5: Solve for x
    x = 21,237,591.93/7,168.70
  6. Step 6: Final answer
    x = 2,962.54

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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.