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Finding the Fourth Proportional to 3,924.93, 5,887.97 and 1,326.99

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Solution

The fourth proportional to 3,924.93, 5,887.97 and 1,326.99 is: 1,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.93 : 5,887.97 = 1,326.99 : x
  2. Step 2: Convert to fraction form
    3,924.93/5,887.97 = 1,326.99/x
  3. Step 3: Cross multiply
    3,924.93x = 5,887.97 × 1,326.99
  4. Step 4: Simplify right side
    3,924.93x = 7,813,270.68
  5. Step 5: Solve for x
    x = 7,813,270.68/3,924.93
  6. Step 6: Final answer
    x = 1,990.68

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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.