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Finding the Fourth Proportional to 15,143.69, 22,716.44 and 4,755.44

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Solution

The fourth proportional to 15,143.69, 22,716.44 and 4,755.44 is: 7,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.69 : 22,716.44 = 4,755.44 : x
  2. Step 2: Convert to fraction form
    15,143.69/22,716.44 = 4,755.44/x
  3. Step 3: Cross multiply
    15,143.69x = 22,716.44 × 4,755.44
  4. Step 4: Simplify right side
    15,143.69x = 108,026,667.43
  5. Step 5: Solve for x
    x = 108,026,667.43/15,143.69
  6. Step 6: Final answer
    x = 7,133.44

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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.