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Finding the Fourth Proportional to 57,470.73, 79,307.62 and 31,626.87

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Solution

The fourth proportional to 57,470.73, 79,307.62 and 31,626.87 is: 43,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,470.73 : 79,307.62 = 31,626.87 : x
  2. Step 2: Convert to fraction form
    57,470.73/79,307.62 = 31,626.87/x
  3. Step 3: Cross multiply
    57,470.73x = 79,307.62 × 31,626.87
  4. Step 4: Simplify right side
    57,470.73x = 2,508,251,946.33
  5. Step 5: Solve for x
    x = 2,508,251,946.33/57,470.73
  6. Step 6: Final answer
    x = 43,643.99

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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.