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Finding the Fourth Proportional to 18,466.92, 25,481.39 and 10,509.28

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Solution

The fourth proportional to 18,466.92, 25,481.39 and 10,509.28 is: 14,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.92 : 25,481.39 = 10,509.28 : x
  2. Step 2: Convert to fraction form
    18,466.92/25,481.39 = 10,509.28/x
  3. Step 3: Cross multiply
    18,466.92x = 25,481.39 × 10,509.28
  4. Step 4: Simplify right side
    18,466.92x = 267,790,946.05
  5. Step 5: Solve for x
    x = 267,790,946.05/18,466.92
  6. Step 6: Final answer
    x = 14,501.12

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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.