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Finding the Fourth Proportional to 13,167.70, 19,751.67 and 3,933.70

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Solution

The fourth proportional to 13,167.70, 19,751.67 and 3,933.70 is: 5,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.70 : 19,751.67 = 3,933.70 : x
  2. Step 2: Convert to fraction form
    13,167.70/19,751.67 = 3,933.70/x
  3. Step 3: Cross multiply
    13,167.70x = 19,751.67 × 3,933.70
  4. Step 4: Simplify right side
    13,167.70x = 77,697,144.28
  5. Step 5: Solve for x
    x = 77,697,144.28/13,167.70
  6. Step 6: Final answer
    x = 5,900.59

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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.