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Finding the Fourth Proportional to 5,724.09, 7,900.80 and 3,366.99

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Solution

The fourth proportional to 5,724.09, 7,900.80 and 3,366.99 is: 4,647.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724.09 : 7,900.80 = 3,366.99 : x
  2. Step 2: Convert to fraction form
    5,724.09/7,900.80 = 3,366.99/x
  3. Step 3: Cross multiply
    5,724.09x = 7,900.80 × 3,366.99
  4. Step 4: Simplify right side
    5,724.09x = 26,601,914.59
  5. Step 5: Solve for x
    x = 26,601,914.59/5,724.09
  6. Step 6: Final answer
    x = 4,647.36

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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.