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Finding the Fourth Proportional to 13,866.72, 20,795.16 and 4,003.32

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Solution

The fourth proportional to 13,866.72, 20,795.16 and 4,003.32 is: 6,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.72 : 20,795.16 = 4,003.32 : x
  2. Step 2: Convert to fraction form
    13,866.72/20,795.16 = 4,003.32/x
  3. Step 3: Cross multiply
    13,866.72x = 20,795.16 × 4,003.32
  4. Step 4: Simplify right side
    13,866.72x = 83,249,679.93
  5. Step 5: Solve for x
    x = 83,249,679.93/13,866.72
  6. Step 6: Final answer
    x = 6,003.56

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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.