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Finding the Fourth Proportional to 5,158.99, 7,739.56 and 2,346.49

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Solution

The fourth proportional to 5,158.99, 7,739.56 and 2,346.49 is: 3,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.99 : 7,739.56 = 2,346.49 : x
  2. Step 2: Convert to fraction form
    5,158.99/7,739.56 = 2,346.49/x
  3. Step 3: Cross multiply
    5,158.99x = 7,739.56 × 2,346.49
  4. Step 4: Simplify right side
    5,158.99x = 18,160,800.14
  5. Step 5: Solve for x
    x = 18,160,800.14/5,158.99
  6. Step 6: Final answer
    x = 3,520.22

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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.