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Finding the Fourth Proportional to 2,356.52, 3,252.12 and 1,308.56

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Solution

The fourth proportional to 2,356.52, 3,252.12 and 1,308.56 is: 1,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.52 : 3,252.12 = 1,308.56 : x
  2. Step 2: Convert to fraction form
    2,356.52/3,252.12 = 1,308.56/x
  3. Step 3: Cross multiply
    2,356.52x = 3,252.12 × 1,308.56
  4. Step 4: Simplify right side
    2,356.52x = 4,255,594.15
  5. Step 5: Solve for x
    x = 4,255,594.15/2,356.52
  6. Step 6: Final answer
    x = 1,805.88

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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.