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Finding the Fourth Proportional to 13,795.50, 20,706.20 and 7,226.40

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Solution

The fourth proportional to 13,795.50, 20,706.20 and 7,226.40 is: 10,846.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.50 : 20,706.20 = 7,226.40 : x
  2. Step 2: Convert to fraction form
    13,795.50/20,706.20 = 7,226.40/x
  3. Step 3: Cross multiply
    13,795.50x = 20,706.20 × 7,226.40
  4. Step 4: Simplify right side
    13,795.50x = 149,631,283.68
  5. Step 5: Solve for x
    x = 149,631,283.68/13,795.50
  6. Step 6: Final answer
    x = 10,846.38

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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.