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Finding the Fourth Proportional to 11,313.72, 16,956.72 and 6,636.06

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Solution

The fourth proportional to 11,313.72, 16,956.72 and 6,636.06 is: 9,945.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.72 : 16,956.72 = 6,636.06 : x
  2. Step 2: Convert to fraction form
    11,313.72/16,956.72 = 6,636.06/x
  3. Step 3: Cross multiply
    11,313.72x = 16,956.72 × 6,636.06
  4. Step 4: Simplify right side
    11,313.72x = 112,525,811.32
  5. Step 5: Solve for x
    x = 112,525,811.32/11,313.72
  6. Step 6: Final answer
    x = 9,945.96

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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.