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Finding the Fourth Proportional to 5,593.99, 7,719.80 and 3,076.21

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Solution

The fourth proportional to 5,593.99, 7,719.80 and 3,076.21 is: 4,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,593.99 : 7,719.80 = 3,076.21 : x
  2. Step 2: Convert to fraction form
    5,593.99/7,719.80 = 3,076.21/x
  3. Step 3: Cross multiply
    5,593.99x = 7,719.80 × 3,076.21
  4. Step 4: Simplify right side
    5,593.99x = 23,747,725.96
  5. Step 5: Solve for x
    x = 23,747,725.96/5,593.99
  6. Step 6: Final answer
    x = 4,245.22

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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.