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Finding the Fourth Proportional to 2,755.33, 4,133.42 and 906.02

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Solution

The fourth proportional to 2,755.33, 4,133.42 and 906.02 is: 1,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.33 : 4,133.42 = 906.02 : x
  2. Step 2: Convert to fraction form
    2,755.33/4,133.42 = 906.02/x
  3. Step 3: Cross multiply
    2,755.33x = 4,133.42 × 906.02
  4. Step 4: Simplify right side
    2,755.33x = 3,744,956.66
  5. Step 5: Solve for x
    x = 3,744,956.66/2,755.33
  6. Step 6: Final answer
    x = 1,359.17

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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.