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Finding the Fourth Proportional to 17,699.45, 24,452.08 and 13,215.45

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Solution

The fourth proportional to 17,699.45, 24,452.08 and 13,215.45 is: 18,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,699.45 : 24,452.08 = 13,215.45 : x
  2. Step 2: Convert to fraction form
    17,699.45/24,452.08 = 13,215.45/x
  3. Step 3: Cross multiply
    17,699.45x = 24,452.08 × 13,215.45
  4. Step 4: Simplify right side
    17,699.45x = 323,145,299.29
  5. Step 5: Solve for x
    x = 323,145,299.29/17,699.45
  6. Step 6: Final answer
    x = 18,257.37

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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.