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Finding the Fourth Proportional to 66,336.96, 91,543.20 and 36,528.96

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Solution

The fourth proportional to 66,336.96, 91,543.20 and 36,528.96 is: 50,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,336.96 : 91,543.20 = 36,528.96 : x
  2. Step 2: Convert to fraction form
    66,336.96/91,543.20 = 36,528.96/x
  3. Step 3: Cross multiply
    66,336.96x = 91,543.20 × 36,528.96
  4. Step 4: Simplify right side
    66,336.96x = 3,343,977,891.07
  5. Step 5: Solve for x
    x = 3,343,977,891.07/66,336.96
  6. Step 6: Final answer
    x = 50,408.97

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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.