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Finding the Fourth Proportional to 66,614.82, 99,993.33 and 28,682.88

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Solution

The fourth proportional to 66,614.82, 99,993.33 and 28,682.88 is: 43,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,614.82 : 99,993.33 = 28,682.88 : x
  2. Step 2: Convert to fraction form
    66,614.82/99,993.33 = 28,682.88/x
  3. Step 3: Cross multiply
    66,614.82x = 99,993.33 × 28,682.88
  4. Step 4: Simplify right side
    66,614.82x = 2,868,096,685.19
  5. Step 5: Solve for x
    x = 2,868,096,685.19/66,614.82
  6. Step 6: Final answer
    x = 43,054.93

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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.