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Finding the Fourth Proportional to 5,497.79, 8,247.04 and 1,939.47

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Solution

The fourth proportional to 5,497.79, 8,247.04 and 1,939.47 is: 2,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.79 : 8,247.04 = 1,939.47 : x
  2. Step 2: Convert to fraction form
    5,497.79/8,247.04 = 1,939.47/x
  3. Step 3: Cross multiply
    5,497.79x = 8,247.04 × 1,939.47
  4. Step 4: Simplify right side
    5,497.79x = 15,994,902.44
  5. Step 5: Solve for x
    x = 15,994,902.44/5,497.79
  6. Step 6: Final answer
    x = 2,909.33

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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.