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Finding the Fourth Proportional to 18,029.66, 24,880.87 and 9,963.09

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Solution

The fourth proportional to 18,029.66, 24,880.87 and 9,963.09 is: 13,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,029.66 : 24,880.87 = 9,963.09 : x
  2. Step 2: Convert to fraction form
    18,029.66/24,880.87 = 9,963.09/x
  3. Step 3: Cross multiply
    18,029.66x = 24,880.87 × 9,963.09
  4. Step 4: Simplify right side
    18,029.66x = 247,890,333.87
  5. Step 5: Solve for x
    x = 247,890,333.87/18,029.66
  6. Step 6: Final answer
    x = 13,749.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.