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Finding the Fourth Proportional to 57,865.89, 79,854.21 and 33,994.74

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Solution

The fourth proportional to 57,865.89, 79,854.21 and 33,994.74 is: 46,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,865.89 : 79,854.21 = 33,994.74 : x
  2. Step 2: Convert to fraction form
    57,865.89/79,854.21 = 33,994.74/x
  3. Step 3: Cross multiply
    57,865.89x = 79,854.21 × 33,994.74
  4. Step 4: Simplify right side
    57,865.89x = 2,714,623,106.86
  5. Step 5: Solve for x
    x = 2,714,623,106.86/57,865.89
  6. Step 6: Final answer
    x = 46,912.32

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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.