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Finding the Fourth Proportional to 13,601.54, 20,362.22 and 13,266.20

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Solution

The fourth proportional to 13,601.54, 20,362.22 and 13,266.20 is: 19,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.54 : 20,362.22 = 13,266.20 : x
  2. Step 2: Convert to fraction form
    13,601.54/20,362.22 = 13,266.20/x
  3. Step 3: Cross multiply
    13,601.54x = 20,362.22 × 13,266.20
  4. Step 4: Simplify right side
    13,601.54x = 270,129,216.63
  5. Step 5: Solve for x
    x = 270,129,216.63/13,601.54
  6. Step 6: Final answer
    x = 19,860.19

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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.