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Finding the Fourth Proportional to 5,502.99, 8,255.19 and 1,805.61

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Solution

The fourth proportional to 5,502.99, 8,255.19 and 1,805.61 is: 2,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,502.99 : 8,255.19 = 1,805.61 : x
  2. Step 2: Convert to fraction form
    5,502.99/8,255.19 = 1,805.61/x
  3. Step 3: Cross multiply
    5,502.99x = 8,255.19 × 1,805.61
  4. Step 4: Simplify right side
    5,502.99x = 14,905,653.62
  5. Step 5: Solve for x
    x = 14,905,653.62/5,502.99
  6. Step 6: Final answer
    x = 2,708.65

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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.