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Finding the Fourth Proportional to 57,679.88, 79,612.66 and 32,543.96

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Solution

The fourth proportional to 57,679.88, 79,612.66 and 32,543.96 is: 44,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,679.88 : 79,612.66 = 32,543.96 : x
  2. Step 2: Convert to fraction form
    57,679.88/79,612.66 = 32,543.96/x
  3. Step 3: Cross multiply
    57,679.88x = 79,612.66 × 32,543.96
  4. Step 4: Simplify right side
    57,679.88x = 2,590,911,222.53
  5. Step 5: Solve for x
    x = 2,590,911,222.53/57,679.88
  6. Step 6: Final answer
    x = 44,918.80

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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.