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Finding the Fourth Proportional to 7,894.18, 11,841.30 and 4,965.22

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Solution

The fourth proportional to 7,894.18, 11,841.30 and 4,965.22 is: 7,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.18 : 11,841.30 = 4,965.22 : x
  2. Step 2: Convert to fraction form
    7,894.18/11,841.30 = 4,965.22/x
  3. Step 3: Cross multiply
    7,894.18x = 11,841.30 × 4,965.22
  4. Step 4: Simplify right side
    7,894.18x = 58,794,659.59
  5. Step 5: Solve for x
    x = 58,794,659.59/7,894.18
  6. Step 6: Final answer
    x = 7,447.85

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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.