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Finding the Fourth Proportional to 3,561.08, 5,341.74 and 964.08

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Solution

The fourth proportional to 3,561.08, 5,341.74 and 964.08 is: 1,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.08 : 5,341.74 = 964.08 : x
  2. Step 2: Convert to fraction form
    3,561.08/5,341.74 = 964.08/x
  3. Step 3: Cross multiply
    3,561.08x = 5,341.74 × 964.08
  4. Step 4: Simplify right side
    3,561.08x = 5,149,864.70
  5. Step 5: Solve for x
    x = 5,149,864.70/3,561.08
  6. Step 6: Final answer
    x = 1,446.15

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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.