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Finding the Fourth Proportional to 2,237.03, 3,356.63 and 921.74

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Solution

The fourth proportional to 2,237.03, 3,356.63 and 921.74 is: 1,383.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.03 : 3,356.63 = 921.74 : x
  2. Step 2: Convert to fraction form
    2,237.03/3,356.63 = 921.74/x
  3. Step 3: Cross multiply
    2,237.03x = 3,356.63 × 921.74
  4. Step 4: Simplify right side
    2,237.03x = 3,093,943.92
  5. Step 5: Solve for x
    x = 3,093,943.92/2,237.03
  6. Step 6: Final answer
    x = 1,383.06

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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.