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Finding the Fourth Proportional to 5,799.99, 8,699.98 and 2,102.21

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Solution

The fourth proportional to 5,799.99, 8,699.98 and 2,102.21 is: 3,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,799.99 : 8,699.98 = 2,102.21 : x
  2. Step 2: Convert to fraction form
    5,799.99/8,699.98 = 2,102.21/x
  3. Step 3: Cross multiply
    5,799.99x = 8,699.98 × 2,102.21
  4. Step 4: Simplify right side
    5,799.99x = 18,289,201.45
  5. Step 5: Solve for x
    x = 18,289,201.45/5,799.99
  6. Step 6: Final answer
    x = 3,153.32

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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.