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Finding the Fourth Proportional to 66,986.06, 100,408.86 and 22,597.52

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Solution

The fourth proportional to 66,986.06, 100,408.86 and 22,597.52 is: 33,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,986.06 : 100,408.86 = 22,597.52 : x
  2. Step 2: Convert to fraction form
    66,986.06/100,408.86 = 22,597.52/x
  3. Step 3: Cross multiply
    66,986.06x = 100,408.86 × 22,597.52
  4. Step 4: Simplify right side
    66,986.06x = 2,268,991,222.03
  5. Step 5: Solve for x
    x = 2,268,991,222.03/66,986.06
  6. Step 6: Final answer
    x = 33,872.59

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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.