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Finding the Fourth Proportional to 3,299.84, 4,553.74 and 1,807.67

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Solution

The fourth proportional to 3,299.84, 4,553.74 and 1,807.67 is: 2,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.84 : 4,553.74 = 1,807.67 : x
  2. Step 2: Convert to fraction form
    3,299.84/4,553.74 = 1,807.67/x
  3. Step 3: Cross multiply
    3,299.84x = 4,553.74 × 1,807.67
  4. Step 4: Simplify right side
    3,299.84x = 8,231,643.28
  5. Step 5: Solve for x
    x = 8,231,643.28/3,299.84
  6. Step 6: Final answer
    x = 2,494.56

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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.