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Finding the Fourth Proportional to 18,462.96, 25,481.30 and 10,503.64

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Solution

The fourth proportional to 18,462.96, 25,481.30 and 10,503.64 is: 14,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.96 : 25,481.30 = 10,503.64 : x
  2. Step 2: Convert to fraction form
    18,462.96/25,481.30 = 10,503.64/x
  3. Step 3: Cross multiply
    18,462.96x = 25,481.30 × 10,503.64
  4. Step 4: Simplify right side
    18,462.96x = 267,646,401.93
  5. Step 5: Solve for x
    x = 267,646,401.93/18,462.96
  6. Step 6: Final answer
    x = 14,496.40

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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.