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Finding the Fourth Proportional to 57,766.47, 79,718.90 and 32,611.11

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Solution

The fourth proportional to 57,766.47, 79,718.90 and 32,611.11 is: 45,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,766.47 : 79,718.90 = 32,611.11 : x
  2. Step 2: Convert to fraction form
    57,766.47/79,718.90 = 32,611.11/x
  3. Step 3: Cross multiply
    57,766.47x = 79,718.90 × 32,611.11
  4. Step 4: Simplify right side
    57,766.47x = 2,599,721,653.92
  5. Step 5: Solve for x
    x = 2,599,721,653.92/57,766.47
  6. Step 6: Final answer
    x = 45,003.99

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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.