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Finding the Fourth Proportional to 23,130.60, 34,687.80 and 12,033.60

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Solution

The fourth proportional to 23,130.60, 34,687.80 and 12,033.60 is: 18,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.60 : 34,687.80 = 12,033.60 : x
  2. Step 2: Convert to fraction form
    23,130.60/34,687.80 = 12,033.60/x
  3. Step 3: Cross multiply
    23,130.60x = 34,687.80 × 12,033.60
  4. Step 4: Simplify right side
    23,130.60x = 417,419,110.08
  5. Step 5: Solve for x
    x = 417,419,110.08/23,130.60
  6. Step 6: Final answer
    x = 18,046.19

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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.