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Finding the Fourth Proportional to 58,558.60, 80,810.87 and 31,701.32

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Solution

The fourth proportional to 58,558.60, 80,810.87 and 31,701.32 is: 43,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,558.60 : 80,810.87 = 31,701.32 : x
  2. Step 2: Convert to fraction form
    58,558.60/80,810.87 = 31,701.32/x
  3. Step 3: Cross multiply
    58,558.60x = 80,810.87 × 31,701.32
  4. Step 4: Simplify right side
    58,558.60x = 2,561,811,444.39
  5. Step 5: Solve for x
    x = 2,561,811,444.39/58,558.60
  6. Step 6: Final answer
    x = 43,747.83

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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.