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Finding the Fourth Proportional to 57,820.99, 79,809.86 and 33,627.61

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Solution

The fourth proportional to 57,820.99, 79,809.86 and 33,627.61 is: 46,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,820.99 : 79,809.86 = 33,627.61 : x
  2. Step 2: Convert to fraction form
    57,820.99/79,809.86 = 33,627.61/x
  3. Step 3: Cross multiply
    57,820.99x = 79,809.86 × 33,627.61
  4. Step 4: Simplify right side
    57,820.99x = 2,683,814,391.98
  5. Step 5: Solve for x
    x = 2,683,814,391.98/57,820.99
  6. Step 6: Final answer
    x = 46,415.92

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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.