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Finding the Fourth Proportional to 3,472.44, 4,792.10 and 1,980.60

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Solution

The fourth proportional to 3,472.44, 4,792.10 and 1,980.60 is: 2,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.44 : 4,792.10 = 1,980.60 : x
  2. Step 2: Convert to fraction form
    3,472.44/4,792.10 = 1,980.60/x
  3. Step 3: Cross multiply
    3,472.44x = 4,792.10 × 1,980.60
  4. Step 4: Simplify right side
    3,472.44x = 9,491,233.26
  5. Step 5: Solve for x
    x = 9,491,233.26/3,472.44
  6. Step 6: Final answer
    x = 2,733.30

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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.