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Finding the Fourth Proportional to 11,958.23, 16,503.68 and 6,922.40

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Solution

The fourth proportional to 11,958.23, 16,503.68 and 6,922.40 is: 9,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.23 : 16,503.68 = 6,922.40 : x
  2. Step 2: Convert to fraction form
    11,958.23/16,503.68 = 6,922.40/x
  3. Step 3: Cross multiply
    11,958.23x = 16,503.68 × 6,922.40
  4. Step 4: Simplify right side
    11,958.23x = 114,245,009.22
  5. Step 5: Solve for x
    x = 114,245,009.22/11,958.23
  6. Step 6: Final answer
    x = 9,553.67

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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.