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Finding the Fourth Proportional to 18,033.30, 27,051.30 and 4,885.45

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Solution

The fourth proportional to 18,033.30, 27,051.30 and 4,885.45 is: 7,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,033.30 : 27,051.30 = 4,885.45 : x
  2. Step 2: Convert to fraction form
    18,033.30/27,051.30 = 4,885.45/x
  3. Step 3: Cross multiply
    18,033.30x = 27,051.30 × 4,885.45
  4. Step 4: Simplify right side
    18,033.30x = 132,157,705.96
  5. Step 5: Solve for x
    x = 132,157,705.96/18,033.30
  6. Step 6: Final answer
    x = 7,328.54

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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.