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Finding the Fourth Proportional to 5,799.68, 8,699.52 and 2,101.90

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Solution

The fourth proportional to 5,799.68, 8,699.52 and 2,101.90 is: 3,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,799.68 : 8,699.52 = 2,101.90 : x
  2. Step 2: Convert to fraction form
    5,799.68/8,699.52 = 2,101.90/x
  3. Step 3: Cross multiply
    5,799.68x = 8,699.52 × 2,101.90
  4. Step 4: Simplify right side
    5,799.68x = 18,285,521.09
  5. Step 5: Solve for x
    x = 18,285,521.09/5,799.68
  6. Step 6: Final answer
    x = 3,152.85

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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.