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Finding the Fourth Proportional to 18,149.23, 27,216.81 and 7,054.46

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Solution

The fourth proportional to 18,149.23, 27,216.81 and 7,054.46 is: 10,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.23 : 27,216.81 = 7,054.46 : x
  2. Step 2: Convert to fraction form
    18,149.23/27,216.81 = 7,054.46/x
  3. Step 3: Cross multiply
    18,149.23x = 27,216.81 × 7,054.46
  4. Step 4: Simplify right side
    18,149.23x = 191,999,897.47
  5. Step 5: Solve for x
    x = 191,999,897.47/18,149.23
  6. Step 6: Final answer
    x = 10,578.96

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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.