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Finding the Fourth Proportional to 2,905.54, 4,351.14 and 1,520.05

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Solution

The fourth proportional to 2,905.54, 4,351.14 and 1,520.05 is: 2,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.54 : 4,351.14 = 1,520.05 : x
  2. Step 2: Convert to fraction form
    2,905.54/4,351.14 = 1,520.05/x
  3. Step 3: Cross multiply
    2,905.54x = 4,351.14 × 1,520.05
  4. Step 4: Simplify right side
    2,905.54x = 6,613,924.80
  5. Step 5: Solve for x
    x = 6,613,924.80/2,905.54
  6. Step 6: Final answer
    x = 2,276.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.