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Finding the Fourth Proportional to 19,609.73, 29,412.15 and 11,609.25

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Solution

The fourth proportional to 19,609.73, 29,412.15 and 11,609.25 is: 17,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.73 : 29,412.15 = 11,609.25 : x
  2. Step 2: Convert to fraction form
    19,609.73/29,412.15 = 11,609.25/x
  3. Step 3: Cross multiply
    19,609.73x = 29,412.15 × 11,609.25
  4. Step 4: Simplify right side
    19,609.73x = 341,453,002.39
  5. Step 5: Solve for x
    x = 341,453,002.39/19,609.73
  6. Step 6: Final answer
    x = 17,412.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.