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Finding the Fourth Proportional to 76,992.63, 106,246.83 and 48,327.69

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Solution

The fourth proportional to 76,992.63, 106,246.83 and 48,327.69 is: 66,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,992.63 : 106,246.83 = 48,327.69 : x
  2. Step 2: Convert to fraction form
    76,992.63/106,246.83 = 48,327.69/x
  3. Step 3: Cross multiply
    76,992.63x = 106,246.83 × 48,327.69
  4. Step 4: Simplify right side
    76,992.63x = 5,134,663,863.72
  5. Step 5: Solve for x
    x = 5,134,663,863.72/76,992.63
  6. Step 6: Final answer
    x = 66,690.33

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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.