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Finding the Fourth Proportional to 66,089.43, 91,200.96 and 35,874.11

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Solution

The fourth proportional to 66,089.43, 91,200.96 and 35,874.11 is: 49,504.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,089.43 : 91,200.96 = 35,874.11 : x
  2. Step 2: Convert to fraction form
    66,089.43/91,200.96 = 35,874.11/x
  3. Step 3: Cross multiply
    66,089.43x = 91,200.96 × 35,874.11
  4. Step 4: Simplify right side
    66,089.43x = 3,271,753,499.15
  5. Step 5: Solve for x
    x = 3,271,753,499.15/66,089.43
  6. Step 6: Final answer
    x = 49,504.94

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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.