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Finding the Fourth Proportional to 7,891.83, 11,834.30 and 4,193.17

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Solution

The fourth proportional to 7,891.83, 11,834.30 and 4,193.17 is: 6,287.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.83 : 11,834.30 = 4,193.17 : x
  2. Step 2: Convert to fraction form
    7,891.83/11,834.30 = 4,193.17/x
  3. Step 3: Cross multiply
    7,891.83x = 11,834.30 × 4,193.17
  4. Step 4: Simplify right side
    7,891.83x = 49,623,212.63
  5. Step 5: Solve for x
    x = 49,623,212.63/7,891.83
  6. Step 6: Final answer
    x = 6,287.92

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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.