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Finding the Fourth Proportional to 20,841.09, 31,251 and 6,792.09

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Solution

The fourth proportional to 20,841.09, 31,251 and 6,792.09 is: 10,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.09 : 31,251 = 6,792.09 : x
  2. Step 2: Convert to fraction form
    20,841.09/31,251 = 6,792.09/x
  3. Step 3: Cross multiply
    20,841.09x = 31,251 × 6,792.09
  4. Step 4: Simplify right side
    20,841.09x = 212,259,604.59
  5. Step 5: Solve for x
    x = 212,259,604.59/20,841.09
  6. Step 6: Final answer
    x = 10,184.67

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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.