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Finding the Fourth Proportional to 6,155.04, 9,217.68 and 4,308

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Solution

The fourth proportional to 6,155.04, 9,217.68 and 4,308 is: 6,451.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,155.04 : 9,217.68 = 4,308 : x
  2. Step 2: Convert to fraction form
    6,155.04/9,217.68 = 4,308/x
  3. Step 3: Cross multiply
    6,155.04x = 9,217.68 × 4,308
  4. Step 4: Simplify right side
    6,155.04x = 39,709,765.44
  5. Step 5: Solve for x
    x = 39,709,765.44/6,155.04
  6. Step 6: Final answer
    x = 6,451.59

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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.