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Finding the Fourth Proportional to 17,699.96, 26,549.90 and 12,136.43

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Solution

The fourth proportional to 17,699.96, 26,549.90 and 12,136.43 is: 18,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,699.96 : 26,549.90 = 12,136.43 : x
  2. Step 2: Convert to fraction form
    17,699.96/26,549.90 = 12,136.43/x
  3. Step 3: Cross multiply
    17,699.96x = 26,549.90 × 12,136.43
  4. Step 4: Simplify right side
    17,699.96x = 322,221,002.86
  5. Step 5: Solve for x
    x = 322,221,002.86/17,699.96
  6. Step 6: Final answer
    x = 18,204.62

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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.