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Finding the Fourth Proportional to 83,395.98, 125,092.86 and 20,216.64

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Solution

The fourth proportional to 83,395.98, 125,092.86 and 20,216.64 is: 30,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,395.98 : 125,092.86 = 20,216.64 : x
  2. Step 2: Convert to fraction form
    83,395.98/125,092.86 = 20,216.64/x
  3. Step 3: Cross multiply
    83,395.98x = 125,092.86 × 20,216.64
  4. Step 4: Simplify right side
    83,395.98x = 2,528,957,317.19
  5. Step 5: Solve for x
    x = 2,528,957,317.19/83,395.98
  6. Step 6: Final answer
    x = 30,324.69

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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.