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Finding the Fourth Proportional to 2,369.08, 3,551.06 and 981.54

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Solution

The fourth proportional to 2,369.08, 3,551.06 and 981.54 is: 1,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.08 : 3,551.06 = 981.54 : x
  2. Step 2: Convert to fraction form
    2,369.08/3,551.06 = 981.54/x
  3. Step 3: Cross multiply
    2,369.08x = 3,551.06 × 981.54
  4. Step 4: Simplify right side
    2,369.08x = 3,485,507.43
  5. Step 5: Solve for x
    x = 3,485,507.43/2,369.08
  6. Step 6: Final answer
    x = 1,471.25

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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.