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Finding the Fourth Proportional to 5,321.99, 7,984.28 and 2,400.30

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Solution

The fourth proportional to 5,321.99, 7,984.28 and 2,400.30 is: 3,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.99 : 7,984.28 = 2,400.30 : x
  2. Step 2: Convert to fraction form
    5,321.99/7,984.28 = 2,400.30/x
  3. Step 3: Cross multiply
    5,321.99x = 7,984.28 × 2,400.30
  4. Step 4: Simplify right side
    5,321.99x = 19,164,667.28
  5. Step 5: Solve for x
    x = 19,164,667.28/5,321.99
  6. Step 6: Final answer
    x = 3,601.03

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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.