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Finding the Fourth Proportional to 61,856.91, 85,364.19 and 33,562.58

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Solution

The fourth proportional to 61,856.91, 85,364.19 and 33,562.58 is: 46,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,856.91 : 85,364.19 = 33,562.58 : x
  2. Step 2: Convert to fraction form
    61,856.91/85,364.19 = 33,562.58/x
  3. Step 3: Cross multiply
    61,856.91x = 85,364.19 × 33,562.58
  4. Step 4: Simplify right side
    61,856.91x = 2,865,042,029.19
  5. Step 5: Solve for x
    x = 2,865,042,029.19/61,856.91
  6. Step 6: Final answer
    x = 46,317.25

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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.