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Finding the Fourth Proportional to 11,398.97, 17,099.43 and 3,078.95

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Solution

The fourth proportional to 11,398.97, 17,099.43 and 3,078.95 is: 4,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.97 : 17,099.43 = 3,078.95 : x
  2. Step 2: Convert to fraction form
    11,398.97/17,099.43 = 3,078.95/x
  3. Step 3: Cross multiply
    11,398.97x = 17,099.43 × 3,078.95
  4. Step 4: Simplify right side
    11,398.97x = 52,648,204.50
  5. Step 5: Solve for x
    x = 52,648,204.50/11,398.97
  6. Step 6: Final answer
    x = 4,618.68

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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.