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Finding the Fourth Proportional to 91,847.39, 126,768.06 and 53,086.87

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Solution

The fourth proportional to 91,847.39, 126,768.06 and 53,086.87 is: 73,270.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,847.39 : 126,768.06 = 53,086.87 : x
  2. Step 2: Convert to fraction form
    91,847.39/126,768.06 = 53,086.87/x
  3. Step 3: Cross multiply
    91,847.39x = 126,768.06 × 53,086.87
  4. Step 4: Simplify right side
    91,847.39x = 6,729,719,521.37
  5. Step 5: Solve for x
    x = 6,729,719,521.37/91,847.39
  6. Step 6: Final answer
    x = 73,270.67

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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.