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Finding the Fourth Proportional to 13,895.85, 20,847.02 and 4,035.32

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Solution

The fourth proportional to 13,895.85, 20,847.02 and 4,035.32 is: 6,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.85 : 20,847.02 = 4,035.32 : x
  2. Step 2: Convert to fraction form
    13,895.85/20,847.02 = 4,035.32/x
  3. Step 3: Cross multiply
    13,895.85x = 20,847.02 × 4,035.32
  4. Step 4: Simplify right side
    13,895.85x = 84,124,272.33
  5. Step 5: Solve for x
    x = 84,124,272.33/13,895.85
  6. Step 6: Final answer
    x = 6,053.91

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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.