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Finding the Fourth Proportional to 7,372.74, 10,174.49 and 4,015.60

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Solution

The fourth proportional to 7,372.74, 10,174.49 and 4,015.60 is: 5,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.74 : 10,174.49 = 4,015.60 : x
  2. Step 2: Convert to fraction form
    7,372.74/10,174.49 = 4,015.60/x
  3. Step 3: Cross multiply
    7,372.74x = 10,174.49 × 4,015.60
  4. Step 4: Simplify right side
    7,372.74x = 40,856,661.97
  5. Step 5: Solve for x
    x = 40,856,661.97/7,372.74
  6. Step 6: Final answer
    x = 5,541.59

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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.