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Finding the Fourth Proportional to 5,699.61, 8,544.21 and 1,999.82

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Solution

The fourth proportional to 5,699.61, 8,544.21 and 1,999.82 is: 2,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699.61 : 8,544.21 = 1,999.82 : x
  2. Step 2: Convert to fraction form
    5,699.61/8,544.21 = 1,999.82/x
  3. Step 3: Cross multiply
    5,699.61x = 8,544.21 × 1,999.82
  4. Step 4: Simplify right side
    5,699.61x = 17,086,882.04
  5. Step 5: Solve for x
    x = 17,086,882.04/5,699.61
  6. Step 6: Final answer
    x = 2,997.90

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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.