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Finding the Fourth Proportional to 13,599.92, 20,383.47 and 7,022.51

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Solution

The fourth proportional to 13,599.92, 20,383.47 and 7,022.51 is: 10,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.92 : 20,383.47 = 7,022.51 : x
  2. Step 2: Convert to fraction form
    13,599.92/20,383.47 = 7,022.51/x
  3. Step 3: Cross multiply
    13,599.92x = 20,383.47 × 7,022.51
  4. Step 4: Simplify right side
    13,599.92x = 143,143,172.87
  5. Step 5: Solve for x
    x = 143,143,172.87/13,599.92
  6. Step 6: Final answer
    x = 10,525.30

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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.