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Finding the Fourth Proportional to 70,526.95, 105,791.10 and 17,936.44

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Solution

The fourth proportional to 70,526.95, 105,791.10 and 17,936.44 is: 26,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526.95 : 105,791.10 = 17,936.44 : x
  2. Step 2: Convert to fraction form
    70,526.95/105,791.10 = 17,936.44/x
  3. Step 3: Cross multiply
    70,526.95x = 105,791.10 × 17,936.44
  4. Step 4: Simplify right side
    70,526.95x = 1,897,515,717.68
  5. Step 5: Solve for x
    x = 1,897,515,717.68/70,526.95
  6. Step 6: Final answer
    x = 26,904.83

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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.