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Finding the Fourth Proportional to 61,203.68, 91,777.82 and 21,761.84

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Solution

The fourth proportional to 61,203.68, 91,777.82 and 21,761.84 is: 32,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.68 : 91,777.82 = 21,761.84 : x
  2. Step 2: Convert to fraction form
    61,203.68/91,777.82 = 21,761.84/x
  3. Step 3: Cross multiply
    61,203.68x = 91,777.82 × 21,761.84
  4. Step 4: Simplify right side
    61,203.68x = 1,997,254,234.39
  5. Step 5: Solve for x
    x = 1,997,254,234.39/61,203.68
  6. Step 6: Final answer
    x = 32,632.91

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1.5x scale

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.