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Finding the Fourth Proportional to 13,663.36, 20,512.32 and 11,624.32

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Solution

The fourth proportional to 13,663.36, 20,512.32 and 11,624.32 is: 17,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.36 : 20,512.32 = 11,624.32 : x
  2. Step 2: Convert to fraction form
    13,663.36/20,512.32 = 11,624.32/x
  3. Step 3: Cross multiply
    13,663.36x = 20,512.32 × 11,624.32
  4. Step 4: Simplify right side
    13,663.36x = 238,441,771.62
  5. Step 5: Solve for x
    x = 238,441,771.62/13,663.36
  6. Step 6: Final answer
    x = 17,451.18

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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.