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Finding the Fourth Proportional to 18,464.86, 25,481.18 and 10,506.92

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Solution

The fourth proportional to 18,464.86, 25,481.18 and 10,506.92 is: 14,499.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.86 : 25,481.18 = 10,506.92 : x
  2. Step 2: Convert to fraction form
    18,464.86/25,481.18 = 10,506.92/x
  3. Step 3: Cross multiply
    18,464.86x = 25,481.18 × 10,506.92
  4. Step 4: Simplify right side
    18,464.86x = 267,728,618.63
  5. Step 5: Solve for x
    x = 267,728,618.63/18,464.86
  6. Step 6: Final answer
    x = 14,499.36

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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.