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Finding the Fourth Proportional to 13,483.67, 20,194.79 and 11,907

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Solution

The fourth proportional to 13,483.67, 20,194.79 and 11,907 is: 17,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.67 : 20,194.79 = 11,907 : x
  2. Step 2: Convert to fraction form
    13,483.67/20,194.79 = 11,907/x
  3. Step 3: Cross multiply
    13,483.67x = 20,194.79 × 11,907
  4. Step 4: Simplify right side
    13,483.67x = 240,459,305.00
  5. Step 5: Solve for x
    x = 240,459,305.00/13,483.67
  6. Step 6: Final answer
    x = 17,833.38

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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.