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Finding the Fourth Proportional to 61,929.94, 85,470.60 and 36,779.44

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Solution

The fourth proportional to 61,929.94, 85,470.60 and 36,779.44 is: 50,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,929.94 : 85,470.60 = 36,779.44 : x
  2. Step 2: Convert to fraction form
    61,929.94/85,470.60 = 36,779.44/x
  3. Step 3: Cross multiply
    61,929.94x = 85,470.60 × 36,779.44
  4. Step 4: Simplify right side
    61,929.94x = 3,143,560,804.46
  5. Step 5: Solve for x
    x = 3,143,560,804.46/61,929.94
  6. Step 6: Final answer
    x = 50,759.95

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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.