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Finding the Fourth Proportional to 43,611.93, 65,424.74 and 18,652.14

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Solution

The fourth proportional to 43,611.93, 65,424.74 and 18,652.14 is: 27,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,611.93 : 65,424.74 = 18,652.14 : x
  2. Step 2: Convert to fraction form
    43,611.93/65,424.74 = 18,652.14/x
  3. Step 3: Cross multiply
    43,611.93x = 65,424.74 × 18,652.14
  4. Step 4: Simplify right side
    43,611.93x = 1,220,311,316.68
  5. Step 5: Solve for x
    x = 1,220,311,316.68/43,611.93
  6. Step 6: Final answer
    x = 27,981.14

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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.