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Finding the Fourth Proportional to 13,898.01, 20,858.67 and 13,022.22

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Solution

The fourth proportional to 13,898.01, 20,858.67 and 13,022.22 is: 19,544.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.01 : 20,858.67 = 13,022.22 : x
  2. Step 2: Convert to fraction form
    13,898.01/20,858.67 = 13,022.22/x
  3. Step 3: Cross multiply
    13,898.01x = 20,858.67 × 13,022.22
  4. Step 4: Simplify right side
    13,898.01x = 271,626,189.65
  5. Step 5: Solve for x
    x = 271,626,189.65/13,898.01
  6. Step 6: Final answer
    x = 19,544.25

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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.