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Finding the Fourth Proportional to 18,609.94, 25,681.92 and 10,226.44

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Solution

The fourth proportional to 18,609.94, 25,681.92 and 10,226.44 is: 14,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.94 : 25,681.92 = 10,226.44 : x
  2. Step 2: Convert to fraction form
    18,609.94/25,681.92 = 10,226.44/x
  3. Step 3: Cross multiply
    18,609.94x = 25,681.92 × 10,226.44
  4. Step 4: Simplify right side
    18,609.94x = 262,634,613.96
  5. Step 5: Solve for x
    x = 262,634,613.96/18,609.94
  6. Step 6: Final answer
    x = 14,112.60

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Double scale
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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.