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Finding the Fourth Proportional to 13,361.70, 20,047.16 and 5,971.26

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Solution

The fourth proportional to 13,361.70, 20,047.16 and 5,971.26 is: 8,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.70 : 20,047.16 = 5,971.26 : x
  2. Step 2: Convert to fraction form
    13,361.70/20,047.16 = 5,971.26/x
  3. Step 3: Cross multiply
    13,361.70x = 20,047.16 × 5,971.26
  4. Step 4: Simplify right side
    13,361.70x = 119,706,804.62
  5. Step 5: Solve for x
    x = 119,706,804.62/13,361.70
  6. Step 6: Final answer
    x = 8,958.95

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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.