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Finding the Fourth Proportional to 7,410.80, 11,116.21 and 3,028.25

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Solution

The fourth proportional to 7,410.80, 11,116.21 and 3,028.25 is: 4,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.80 : 11,116.21 = 3,028.25 : x
  2. Step 2: Convert to fraction form
    7,410.80/11,116.21 = 3,028.25/x
  3. Step 3: Cross multiply
    7,410.80x = 11,116.21 × 3,028.25
  4. Step 4: Simplify right side
    7,410.80x = 33,662,694.51
  5. Step 5: Solve for x
    x = 33,662,694.51/7,410.80
  6. Step 6: Final answer
    x = 4,542.39

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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.