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Finding the Fourth Proportional to 3,061.35, 4,591.56 and 981.14

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Solution

The fourth proportional to 3,061.35, 4,591.56 and 981.14 is: 1,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.35 : 4,591.56 = 981.14 : x
  2. Step 2: Convert to fraction form
    3,061.35/4,591.56 = 981.14/x
  3. Step 3: Cross multiply
    3,061.35x = 4,591.56 × 981.14
  4. Step 4: Simplify right side
    3,061.35x = 4,504,940.22
  5. Step 5: Solve for x
    x = 4,504,940.22/3,061.35
  6. Step 6: Final answer
    x = 1,471.55

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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.