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Finding the Fourth Proportional to 91,325.91, 126,018.84 and 50,484.54

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Solution

The fourth proportional to 91,325.91, 126,018.84 and 50,484.54 is: 69,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,325.91 : 126,018.84 = 50,484.54 : x
  2. Step 2: Convert to fraction form
    91,325.91/126,018.84 = 50,484.54/x
  3. Step 3: Cross multiply
    91,325.91x = 126,018.84 × 50,484.54
  4. Step 4: Simplify right side
    91,325.91x = 6,362,003,168.73
  5. Step 5: Solve for x
    x = 6,362,003,168.73/91,325.91
  6. Step 6: Final answer
    x = 69,662.63

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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.