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Finding the Fourth Proportional to 17,861.78, 24,593.13 and 15,167.34

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Solution

The fourth proportional to 17,861.78, 24,593.13 and 15,167.34 is: 20,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,861.78 : 24,593.13 = 15,167.34 : x
  2. Step 2: Convert to fraction form
    17,861.78/24,593.13 = 15,167.34/x
  3. Step 3: Cross multiply
    17,861.78x = 24,593.13 × 15,167.34
  4. Step 4: Simplify right side
    17,861.78x = 373,012,364.37
  5. Step 5: Solve for x
    x = 373,012,364.37/17,861.78
  6. Step 6: Final answer
    x = 20,883.28

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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.