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Finding the Fourth Proportional to 5,709.93, 7,877.93 and 3,191.69

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Solution

The fourth proportional to 5,709.93, 7,877.93 and 3,191.69 is: 4,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.93 : 7,877.93 = 3,191.69 : x
  2. Step 2: Convert to fraction form
    5,709.93/7,877.93 = 3,191.69/x
  3. Step 3: Cross multiply
    5,709.93x = 7,877.93 × 3,191.69
  4. Step 4: Simplify right side
    5,709.93x = 25,143,855.05
  5. Step 5: Solve for x
    x = 25,143,855.05/5,709.93
  6. Step 6: Final answer
    x = 4,403.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.