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Finding the Fourth Proportional to 18,473.42, 25,473.15 and 12,494.72

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Solution

The fourth proportional to 18,473.42, 25,473.15 and 12,494.72 is: 17,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.42 : 25,473.15 = 12,494.72 : x
  2. Step 2: Convert to fraction form
    18,473.42/25,473.15 = 12,494.72/x
  3. Step 3: Cross multiply
    18,473.42x = 25,473.15 × 12,494.72
  4. Step 4: Simplify right side
    18,473.42x = 318,279,749.40
  5. Step 5: Solve for x
    x = 318,279,749.40/18,473.42
  6. Step 6: Final answer
    x = 17,229.07

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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.