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Finding the Fourth Proportional to 66,265.92, 91,446.20 and 49,345.84

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Solution

The fourth proportional to 66,265.92, 91,446.20 and 49,345.84 is: 68,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,265.92 : 91,446.20 = 49,345.84 : x
  2. Step 2: Convert to fraction form
    66,265.92/91,446.20 = 49,345.84/x
  3. Step 3: Cross multiply
    66,265.92x = 91,446.20 × 49,345.84
  4. Step 4: Simplify right side
    66,265.92x = 4,512,489,553.81
  5. Step 5: Solve for x
    x = 4,512,489,553.81/66,265.92
  6. Step 6: Final answer
    x = 68,096.69

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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.