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Finding the Fourth Proportional to 61,947.83, 85,480.74 and 36,448.58

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Solution

The fourth proportional to 61,947.83, 85,480.74 and 36,448.58 is: 50,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947.83 : 85,480.74 = 36,448.58 : x
  2. Step 2: Convert to fraction form
    61,947.83/85,480.74 = 36,448.58/x
  3. Step 3: Cross multiply
    61,947.83x = 85,480.74 × 36,448.58
  4. Step 4: Simplify right side
    61,947.83x = 3,115,651,804.05
  5. Step 5: Solve for x
    x = 3,115,651,804.05/61,947.83
  6. Step 6: Final answer
    x = 50,294.77

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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.