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Finding the Fourth Proportional to 70,013.73, 96,615.11 and 39,794.86

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Solution

The fourth proportional to 70,013.73, 96,615.11 and 39,794.86 is: 54,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,013.73 : 96,615.11 = 39,794.86 : x
  2. Step 2: Convert to fraction form
    70,013.73/96,615.11 = 39,794.86/x
  3. Step 3: Cross multiply
    70,013.73x = 96,615.11 × 39,794.86
  4. Step 4: Simplify right side
    70,013.73x = 3,844,784,996.59
  5. Step 5: Solve for x
    x = 3,844,784,996.59/70,013.73
  6. Step 6: Final answer
    x = 54,914.73

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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.