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Finding the Fourth Proportional to 18,647.08, 27,955.98 and 6,953.92

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Solution

The fourth proportional to 18,647.08, 27,955.98 and 6,953.92 is: 10,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.08 : 27,955.98 = 6,953.92 : x
  2. Step 2: Convert to fraction form
    18,647.08/27,955.98 = 6,953.92/x
  3. Step 3: Cross multiply
    18,647.08x = 27,955.98 × 6,953.92
  4. Step 4: Simplify right side
    18,647.08x = 194,403,648.44
  5. Step 5: Solve for x
    x = 194,403,648.44/18,647.08
  6. Step 6: Final answer
    x = 10,425.42

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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.