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Finding the Fourth Proportional to 3,957.62, 5,486.48 and 3,746.95

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Solution

The fourth proportional to 3,957.62, 5,486.48 and 3,746.95 is: 5,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.62 : 5,486.48 = 3,746.95 : x
  2. Step 2: Convert to fraction form
    3,957.62/5,486.48 = 3,746.95/x
  3. Step 3: Cross multiply
    3,957.62x = 5,486.48 × 3,746.95
  4. Step 4: Simplify right side
    3,957.62x = 20,557,561.89
  5. Step 5: Solve for x
    x = 20,557,561.89/3,957.62
  6. Step 6: Final answer
    x = 5,194.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.