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Finding the Fourth Proportional to 43,791.01, 60,428.12 and 28,659.71

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Solution

The fourth proportional to 43,791.01, 60,428.12 and 28,659.71 is: 39,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,791.01 : 60,428.12 = 28,659.71 : x
  2. Step 2: Convert to fraction form
    43,791.01/60,428.12 = 28,659.71/x
  3. Step 3: Cross multiply
    43,791.01x = 60,428.12 × 28,659.71
  4. Step 4: Simplify right side
    43,791.01x = 1,731,852,395.05
  5. Step 5: Solve for x
    x = 1,731,852,395.05/43,791.01
  6. Step 6: Final answer
    x = 39,548.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.