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Finding the Fourth Proportional to 17,673.19, 26,452.09 and 12,991.96

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Solution

The fourth proportional to 17,673.19, 26,452.09 and 12,991.96 is: 19,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,673.19 : 26,452.09 = 12,991.96 : x
  2. Step 2: Convert to fraction form
    17,673.19/26,452.09 = 12,991.96/x
  3. Step 3: Cross multiply
    17,673.19x = 26,452.09 × 12,991.96
  4. Step 4: Simplify right side
    17,673.19x = 343,664,495.20
  5. Step 5: Solve for x
    x = 343,664,495.20/17,673.19
  6. Step 6: Final answer
    x = 19,445.53

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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.