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Finding the Fourth Proportional to 57,976.47, 86,974.47 and 17,986.23

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Solution

The fourth proportional to 57,976.47, 86,974.47 and 17,986.23 is: 26,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,976.47 : 86,974.47 = 17,986.23 : x
  2. Step 2: Convert to fraction form
    57,976.47/86,974.47 = 17,986.23/x
  3. Step 3: Cross multiply
    57,976.47x = 86,974.47 × 17,986.23
  4. Step 4: Simplify right side
    57,976.47x = 1,564,342,821.55
  5. Step 5: Solve for x
    x = 1,564,342,821.55/57,976.47
  6. Step 6: Final answer
    x = 26,982.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.