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Finding the Fourth Proportional to 66,912.19, 92,338.82 and 37,104.19

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Solution

The fourth proportional to 66,912.19, 92,338.82 and 37,104.19 is: 51,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912.19 : 92,338.82 = 37,104.19 : x
  2. Step 2: Convert to fraction form
    66,912.19/92,338.82 = 37,104.19/x
  3. Step 3: Cross multiply
    66,912.19x = 92,338.82 × 37,104.19
  4. Step 4: Simplify right side
    66,912.19x = 3,426,156,844.43
  5. Step 5: Solve for x
    x = 3,426,156,844.43/66,912.19
  6. Step 6: Final answer
    x = 51,203.78

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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.