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Finding the Fourth Proportional to 70,183.70, 96,855.90 and 38,354.66

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Solution

The fourth proportional to 70,183.70, 96,855.90 and 38,354.66 is: 52,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,183.70 : 96,855.90 = 38,354.66 : x
  2. Step 2: Convert to fraction form
    70,183.70/96,855.90 = 38,354.66/x
  3. Step 3: Cross multiply
    70,183.70x = 96,855.90 × 38,354.66
  4. Step 4: Simplify right side
    70,183.70x = 3,714,875,113.49
  5. Step 5: Solve for x
    x = 3,714,875,113.49/70,183.70
  6. Step 6: Final answer
    x = 52,930.74

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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.