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Finding the Fourth Proportional to 17,861.35, 24,650.43 and 9,905.11

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Solution

The fourth proportional to 17,861.35, 24,650.43 and 9,905.11 is: 13,670.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,861.35 : 24,650.43 = 9,905.11 : x
  2. Step 2: Convert to fraction form
    17,861.35/24,650.43 = 9,905.11/x
  3. Step 3: Cross multiply
    17,861.35x = 24,650.43 × 9,905.11
  4. Step 4: Simplify right side
    17,861.35x = 244,165,220.70
  5. Step 5: Solve for x
    x = 244,165,220.70/17,861.35
  6. Step 6: Final answer
    x = 13,670.03

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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.