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Finding the Fourth Proportional to 3,963.60, 5,725.08 and 3,963.60

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Solution

The fourth proportional to 3,963.60, 5,725.08 and 3,963.60 is: 5,725.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.60 : 5,725.08 = 3,963.60 : x
  2. Step 2: Convert to fraction form
    3,963.60/5,725.08 = 3,963.60/x
  3. Step 3: Cross multiply
    3,963.60x = 5,725.08 × 3,963.60
  4. Step 4: Simplify right side
    3,963.60x = 22,691,927.09
  5. Step 5: Solve for x
    x = 22,691,927.09/3,963.60
  6. Step 6: Final answer
    x = 5,725.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.