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Finding the Fourth Proportional to 4,998.75, 7,499.43 and 1,711.83

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Solution

The fourth proportional to 4,998.75, 7,499.43 and 1,711.83 is: 2,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.75 : 7,499.43 = 1,711.83 : x
  2. Step 2: Convert to fraction form
    4,998.75/7,499.43 = 1,711.83/x
  3. Step 3: Cross multiply
    4,998.75x = 7,499.43 × 1,711.83
  4. Step 4: Simplify right side
    4,998.75x = 12,837,749.26
  5. Step 5: Solve for x
    x = 12,837,749.26/4,998.75
  6. Step 6: Final answer
    x = 2,568.19

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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.