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Finding the Fourth Proportional to 17,881.56, 24,670.85 and 11,914.29

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Solution

The fourth proportional to 17,881.56, 24,670.85 and 11,914.29 is: 16,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,881.56 : 24,670.85 = 11,914.29 : x
  2. Step 2: Convert to fraction form
    17,881.56/24,670.85 = 11,914.29/x
  3. Step 3: Cross multiply
    17,881.56x = 24,670.85 × 11,914.29
  4. Step 4: Simplify right side
    17,881.56x = 293,935,601.88
  5. Step 5: Solve for x
    x = 293,935,601.88/17,881.56
  6. Step 6: Final answer
    x = 16,437.92

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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.