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Finding the Fourth Proportional to 3,661.65, 5,055.08 and 2,529

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Solution

The fourth proportional to 3,661.65, 5,055.08 and 2,529 is: 3,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.65 : 5,055.08 = 2,529 : x
  2. Step 2: Convert to fraction form
    3,661.65/5,055.08 = 2,529/x
  3. Step 3: Cross multiply
    3,661.65x = 5,055.08 × 2,529
  4. Step 4: Simplify right side
    3,661.65x = 12,784,284.68
  5. Step 5: Solve for x
    x = 12,784,284.68/3,661.65
  6. Step 6: Final answer
    x = 3,491.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.