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Finding the Fourth Proportional to 7,889.61, 11,834.42 and 2,343.07

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Solution

The fourth proportional to 7,889.61, 11,834.42 and 2,343.07 is: 3,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.61 : 11,834.42 = 2,343.07 : x
  2. Step 2: Convert to fraction form
    7,889.61/11,834.42 = 2,343.07/x
  3. Step 3: Cross multiply
    7,889.61x = 11,834.42 × 2,343.07
  4. Step 4: Simplify right side
    7,889.61x = 27,728,833.17
  5. Step 5: Solve for x
    x = 27,728,833.17/7,889.61
  6. Step 6: Final answer
    x = 3,514.60

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Similar ratio
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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.