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Finding the Fourth Proportional to 57,626.94, 79,526.17 and 31,788.46

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Solution

The fourth proportional to 57,626.94, 79,526.17 and 31,788.46 is: 43,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,626.94 : 79,526.17 = 31,788.46 : x
  2. Step 2: Convert to fraction form
    57,626.94/79,526.17 = 31,788.46/x
  3. Step 3: Cross multiply
    57,626.94x = 79,526.17 × 31,788.46
  4. Step 4: Simplify right side
    57,626.94x = 2,528,014,493.93
  5. Step 5: Solve for x
    x = 2,528,014,493.93/57,626.94
  6. Step 6: Final answer
    x = 43,868.62

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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.