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Finding the Fourth Proportional to 66,227.22, 91,389.87 and 37,934.73

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Solution

The fourth proportional to 66,227.22, 91,389.87 and 37,934.73 is: 52,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,227.22 : 91,389.87 = 37,934.73 : x
  2. Step 2: Convert to fraction form
    66,227.22/91,389.87 = 37,934.73/x
  3. Step 3: Cross multiply
    66,227.22x = 91,389.87 × 37,934.73
  4. Step 4: Simplify right side
    66,227.22x = 3,466,850,043.19
  5. Step 5: Solve for x
    x = 3,466,850,043.19/66,227.22
  6. Step 6: Final answer
    x = 52,347.81

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1.5x scale

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.