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Finding the Fourth Proportional to 5,195.79, 7,793.69 and 1,907.46

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Solution

The fourth proportional to 5,195.79, 7,793.69 and 1,907.46 is: 2,861.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.79 : 7,793.69 = 1,907.46 : x
  2. Step 2: Convert to fraction form
    5,195.79/7,793.69 = 1,907.46/x
  3. Step 3: Cross multiply
    5,195.79x = 7,793.69 × 1,907.46
  4. Step 4: Simplify right side
    5,195.79x = 14,866,142.39
  5. Step 5: Solve for x
    x = 14,866,142.39/5,195.79
  6. Step 6: Final answer
    x = 2,861.19

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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.