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Finding the Fourth Proportional to 11,994.69, 17,989.91 and 7,058.55

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Solution

The fourth proportional to 11,994.69, 17,989.91 and 7,058.55 is: 10,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.69 : 17,989.91 = 7,058.55 : x
  2. Step 2: Convert to fraction form
    11,994.69/17,989.91 = 7,058.55/x
  3. Step 3: Cross multiply
    11,994.69x = 17,989.91 × 7,058.55
  4. Step 4: Simplify right side
    11,994.69x = 126,982,679.23
  5. Step 5: Solve for x
    x = 126,982,679.23/11,994.69
  6. Step 6: Final answer
    x = 10,586.57

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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.