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Finding the Fourth Proportional to 58,779.59, 81,115.82 and 31,922.11

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Solution

The fourth proportional to 58,779.59, 81,115.82 and 31,922.11 is: 44,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,779.59 : 81,115.82 = 31,922.11 : x
  2. Step 2: Convert to fraction form
    58,779.59/81,115.82 = 31,922.11/x
  3. Step 3: Cross multiply
    58,779.59x = 81,115.82 × 31,922.11
  4. Step 4: Simplify right side
    58,779.59x = 2,589,387,846.19
  5. Step 5: Solve for x
    x = 2,589,387,846.19/58,779.59
  6. Step 6: Final answer
    x = 44,052.50

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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.