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Finding the Fourth Proportional to 65,393.33, 90,236.57 and 36,706.43

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Solution

The fourth proportional to 65,393.33, 90,236.57 and 36,706.43 is: 50,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,393.33 : 90,236.57 = 36,706.43 : x
  2. Step 2: Convert to fraction form
    65,393.33/90,236.57 = 36,706.43/x
  3. Step 3: Cross multiply
    65,393.33x = 90,236.57 × 36,706.43
  4. Step 4: Simplify right side
    65,393.33x = 3,312,261,751.31
  5. Step 5: Solve for x
    x = 3,312,261,751.31/65,393.33
  6. Step 6: Final answer
    x = 50,651.37

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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.