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Finding the Fourth Proportional to 91,682.67, 126,518.48 and 51,938.67

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Solution

The fourth proportional to 91,682.67, 126,518.48 and 51,938.67 is: 71,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,682.67 : 126,518.48 = 51,938.67 : x
  2. Step 2: Convert to fraction form
    91,682.67/126,518.48 = 51,938.67/x
  3. Step 3: Cross multiply
    91,682.67x = 126,518.48 × 51,938.67
  4. Step 4: Simplify right side
    91,682.67x = 6,571,201,321.93
  5. Step 5: Solve for x
    x = 6,571,201,321.93/91,682.67
  6. Step 6: Final answer
    x = 71,673.32

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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.