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Finding the Fourth Proportional to 17,673.44, 26,452.47 and 12,992.21

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Solution

The fourth proportional to 17,673.44, 26,452.47 and 12,992.21 is: 19,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,673.44 : 26,452.47 = 12,992.21 : x
  2. Step 2: Convert to fraction form
    17,673.44/26,452.47 = 12,992.21/x
  3. Step 3: Cross multiply
    17,673.44x = 26,452.47 × 12,992.21
  4. Step 4: Simplify right side
    17,673.44x = 343,675,980.30
  5. Step 5: Solve for x
    x = 343,675,980.30/17,673.44
  6. Step 6: Final answer
    x = 19,445.90

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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.