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Finding the Fourth Proportional to 11,958.95, 17,926.79 and 5,717.34

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Solution

The fourth proportional to 11,958.95, 17,926.79 and 5,717.34 is: 8,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.95 : 17,926.79 = 5,717.34 : x
  2. Step 2: Convert to fraction form
    11,958.95/17,926.79 = 5,717.34/x
  3. Step 3: Cross multiply
    11,958.95x = 17,926.79 × 5,717.34
  4. Step 4: Simplify right side
    11,958.95x = 102,493,623.61
  5. Step 5: Solve for x
    x = 102,493,623.61/11,958.95
  6. Step 6: Final answer
    x = 8,570.45

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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.