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Finding the Fourth Proportional to 2,107.52, 3,164.52 and 2,068.64

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Solution

The fourth proportional to 2,107.52, 3,164.52 and 2,068.64 is: 3,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.52 : 3,164.52 = 2,068.64 : x
  2. Step 2: Convert to fraction form
    2,107.52/3,164.52 = 2,068.64/x
  3. Step 3: Cross multiply
    2,107.52x = 3,164.52 × 2,068.64
  4. Step 4: Simplify right side
    2,107.52x = 6,546,252.65
  5. Step 5: Solve for x
    x = 6,546,252.65/2,107.52
  6. Step 6: Final answer
    x = 3,106.14

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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.