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Finding the Fourth Proportional to 11,352.63, 17,028.95 and 3,144.63

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Solution

The fourth proportional to 11,352.63, 17,028.95 and 3,144.63 is: 4,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.63 : 17,028.95 = 3,144.63 : x
  2. Step 2: Convert to fraction form
    11,352.63/17,028.95 = 3,144.63/x
  3. Step 3: Cross multiply
    11,352.63x = 17,028.95 × 3,144.63
  4. Step 4: Simplify right side
    11,352.63x = 53,549,747.04
  5. Step 5: Solve for x
    x = 53,549,747.04/11,352.63
  6. Step 6: Final answer
    x = 4,716.95

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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.