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Finding the Fourth Proportional to 3,859.92, 5,326.79 and 2,366.99

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Solution

The fourth proportional to 3,859.92, 5,326.79 and 2,366.99 is: 3,266.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.92 : 5,326.79 = 2,366.99 : x
  2. Step 2: Convert to fraction form
    3,859.92/5,326.79 = 2,366.99/x
  3. Step 3: Cross multiply
    3,859.92x = 5,326.79 × 2,366.99
  4. Step 4: Simplify right side
    3,859.92x = 12,608,420.19
  5. Step 5: Solve for x
    x = 12,608,420.19/3,859.92
  6. Step 6: Final answer
    x = 3,266.50

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1.5x scale

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.