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Finding the Fourth Proportional to 3,371.76, 4,653 and 1,974.60

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Solution

The fourth proportional to 3,371.76, 4,653 and 1,974.60 is: 2,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.76 : 4,653 = 1,974.60 : x
  2. Step 2: Convert to fraction form
    3,371.76/4,653 = 1,974.60/x
  3. Step 3: Cross multiply
    3,371.76x = 4,653 × 1,974.60
  4. Step 4: Simplify right side
    3,371.76x = 9,187,813.80
  5. Step 5: Solve for x
    x = 9,187,813.80/3,371.76
  6. Step 6: Final answer
    x = 2,724.93

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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.