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Finding the Fourth Proportional to 70,002.84, 96,622.34 and 39,805.86

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Solution

The fourth proportional to 70,002.84, 96,622.34 and 39,805.86 is: 54,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,002.84 : 96,622.34 = 39,805.86 : x
  2. Step 2: Convert to fraction form
    70,002.84/96,622.34 = 39,805.86/x
  3. Step 3: Cross multiply
    70,002.84x = 96,622.34 × 39,805.86
  4. Step 4: Simplify right side
    70,002.84x = 3,846,135,139.88
  5. Step 5: Solve for x
    x = 3,846,135,139.88/70,002.84
  6. Step 6: Final answer
    x = 54,942.56

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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.