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Finding the Fourth Proportional to 5,599.20, 8,390.52 and 4,984.08

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Solution

The fourth proportional to 5,599.20, 8,390.52 and 4,984.08 is: 7,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.20 : 8,390.52 = 4,984.08 : x
  2. Step 2: Convert to fraction form
    5,599.20/8,390.52 = 4,984.08/x
  3. Step 3: Cross multiply
    5,599.20x = 8,390.52 × 4,984.08
  4. Step 4: Simplify right side
    5,599.20x = 41,819,022.92
  5. Step 5: Solve for x
    x = 41,819,022.92/5,599.20
  6. Step 6: Final answer
    x = 7,468.75

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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.