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Finding the Fourth Proportional to 18,483.61, 27,738.77 and 7,393.39

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Solution

The fourth proportional to 18,483.61, 27,738.77 and 7,393.39 is: 11,095.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.61 : 27,738.77 = 7,393.39 : x
  2. Step 2: Convert to fraction form
    18,483.61/27,738.77 = 7,393.39/x
  3. Step 3: Cross multiply
    18,483.61x = 27,738.77 × 7,393.39
  4. Step 4: Simplify right side
    18,483.61x = 205,083,544.73
  5. Step 5: Solve for x
    x = 205,083,544.73/18,483.61
  6. Step 6: Final answer
    x = 11,095.43

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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.