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Finding the Fourth Proportional to 71,402.36, 107,091.41 and 33,455.57

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Solution

The fourth proportional to 71,402.36, 107,091.41 and 33,455.57 is: 50,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,402.36 : 107,091.41 = 33,455.57 : x
  2. Step 2: Convert to fraction form
    71,402.36/107,091.41 = 33,455.57/x
  3. Step 3: Cross multiply
    71,402.36x = 107,091.41 × 33,455.57
  4. Step 4: Simplify right side
    71,402.36x = 3,582,803,460.92
  5. Step 5: Solve for x
    x = 3,582,803,460.92/71,402.36
  6. Step 6: Final answer
    x = 50,177.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.