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Finding the Fourth Proportional to 5,879.70, 8,805.54 and 3,243.15

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Solution

The fourth proportional to 5,879.70, 8,805.54 and 3,243.15 is: 4,857.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.70 : 8,805.54 = 3,243.15 : x
  2. Step 2: Convert to fraction form
    5,879.70/8,805.54 = 3,243.15/x
  3. Step 3: Cross multiply
    5,879.70x = 8,805.54 × 3,243.15
  4. Step 4: Simplify right side
    5,879.70x = 28,557,687.05
  5. Step 5: Solve for x
    x = 28,557,687.05/5,879.70
  6. Step 6: Final answer
    x = 4,857.00

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1.5x scale

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.