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Finding the Fourth Proportional to 13,375.70, 19,975.70 and 10,747.19

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Solution

The fourth proportional to 13,375.70, 19,975.70 and 10,747.19 is: 16,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.70 : 19,975.70 = 10,747.19 : x
  2. Step 2: Convert to fraction form
    13,375.70/19,975.70 = 10,747.19/x
  3. Step 3: Cross multiply
    13,375.70x = 19,975.70 × 10,747.19
  4. Step 4: Simplify right side
    13,375.70x = 214,682,489.67
  5. Step 5: Solve for x
    x = 214,682,489.67/13,375.70
  6. Step 6: Final answer
    x = 16,050.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.