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Finding the Fourth Proportional to 61,149.54, 91,733.42 and 21,703.35

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Solution

The fourth proportional to 61,149.54, 91,733.42 and 21,703.35 is: 32,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.54 : 91,733.42 = 21,703.35 : x
  2. Step 2: Convert to fraction form
    61,149.54/91,733.42 = 21,703.35/x
  3. Step 3: Cross multiply
    61,149.54x = 91,733.42 × 21,703.35
  4. Step 4: Simplify right side
    61,149.54x = 1,990,922,520.96
  5. Step 5: Solve for x
    x = 1,990,922,520.96/61,149.54
  6. Step 6: Final answer
    x = 32,558.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.