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Finding the Fourth Proportional to 4,086.99, 5,639.99 and 2,493.63

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Solution

The fourth proportional to 4,086.99, 5,639.99 and 2,493.63 is: 3,441.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.99 : 5,639.99 = 2,493.63 : x
  2. Step 2: Convert to fraction form
    4,086.99/5,639.99 = 2,493.63/x
  3. Step 3: Cross multiply
    4,086.99x = 5,639.99 × 2,493.63
  4. Step 4: Simplify right side
    4,086.99x = 14,064,035.80
  5. Step 5: Solve for x
    x = 14,064,035.80/4,086.99
  6. Step 6: Final answer
    x = 3,441.17

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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.