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Finding the Fourth Proportional to 14,662.98, 21,991.09 and 8,741.53

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Solution

The fourth proportional to 14,662.98, 21,991.09 and 8,741.53 is: 13,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.98 : 21,991.09 = 8,741.53 : x
  2. Step 2: Convert to fraction form
    14,662.98/21,991.09 = 8,741.53/x
  3. Step 3: Cross multiply
    14,662.98x = 21,991.09 × 8,741.53
  4. Step 4: Simplify right side
    14,662.98x = 192,235,729.26
  5. Step 5: Solve for x
    x = 192,235,729.26/14,662.98
  6. Step 6: Final answer
    x = 13,110.28

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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.