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Finding the Fourth Proportional to 13,599.75, 20,399.76 and 4,835.01

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Solution

The fourth proportional to 13,599.75, 20,399.76 and 4,835.01 is: 7,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.75 : 20,399.76 = 4,835.01 : x
  2. Step 2: Convert to fraction form
    13,599.75/20,399.76 = 4,835.01/x
  3. Step 3: Cross multiply
    13,599.75x = 20,399.76 × 4,835.01
  4. Step 4: Simplify right side
    13,599.75x = 98,633,043.60
  5. Step 5: Solve for x
    x = 98,633,043.60/13,599.75
  6. Step 6: Final answer
    x = 7,252.56

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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.