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Finding the Fourth Proportional to 12,395.97, 18,597.80 and 3,963.73

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Solution

The fourth proportional to 12,395.97, 18,597.80 and 3,963.73 is: 5,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.97 : 18,597.80 = 3,963.73 : x
  2. Step 2: Convert to fraction form
    12,395.97/18,597.80 = 3,963.73/x
  3. Step 3: Cross multiply
    12,395.97x = 18,597.80 × 3,963.73
  4. Step 4: Simplify right side
    12,395.97x = 73,716,657.79
  5. Step 5: Solve for x
    x = 73,716,657.79/12,395.97
  6. Step 6: Final answer
    x = 5,946.82

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1.5x scale

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.