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Finding the Fourth Proportional to 18,030.60, 24,880.82 and 9,963.92

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Solution

The fourth proportional to 18,030.60, 24,880.82 and 9,963.92 is: 13,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.60 : 24,880.82 = 9,963.92 : x
  2. Step 2: Convert to fraction form
    18,030.60/24,880.82 = 9,963.92/x
  3. Step 3: Cross multiply
    18,030.60x = 24,880.82 × 9,963.92
  4. Step 4: Simplify right side
    18,030.60x = 247,910,500.01
  5. Step 5: Solve for x
    x = 247,910,500.01/18,030.60
  6. Step 6: Final answer
    x = 13,749.43

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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.