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Finding the Fourth Proportional to 58,735.41, 81,055.11 and 31,877.96

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Solution

The fourth proportional to 58,735.41, 81,055.11 and 31,877.96 is: 43,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,735.41 : 81,055.11 = 31,877.96 : x
  2. Step 2: Convert to fraction form
    58,735.41/81,055.11 = 31,877.96/x
  3. Step 3: Cross multiply
    58,735.41x = 81,055.11 × 31,877.96
  4. Step 4: Simplify right side
    58,735.41x = 2,583,871,089.33
  5. Step 5: Solve for x
    x = 2,583,871,089.33/58,735.41
  6. Step 6: Final answer
    x = 43,991.71

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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.