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Finding the Fourth Proportional to 13,593.66, 20,399.67 and 4,828.74

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Solution

The fourth proportional to 13,593.66, 20,399.67 and 4,828.74 is: 7,246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.66 : 20,399.67 = 4,828.74 : x
  2. Step 2: Convert to fraction form
    13,593.66/20,399.67 = 4,828.74/x
  3. Step 3: Cross multiply
    13,593.66x = 20,399.67 × 4,828.74
  4. Step 4: Simplify right side
    13,593.66x = 98,504,702.52
  5. Step 5: Solve for x
    x = 98,504,702.52/13,593.66
  6. Step 6: Final answer
    x = 7,246.37

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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.