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Finding the Fourth Proportional to 17,318.85, 23,899.94 and 9,361.06

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Solution

The fourth proportional to 17,318.85, 23,899.94 and 9,361.06 is: 12,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,318.85 : 23,899.94 = 9,361.06 : x
  2. Step 2: Convert to fraction form
    17,318.85/23,899.94 = 9,361.06/x
  3. Step 3: Cross multiply
    17,318.85x = 23,899.94 × 9,361.06
  4. Step 4: Simplify right side
    17,318.85x = 223,728,772.34
  5. Step 5: Solve for x
    x = 223,728,772.34/17,318.85
  6. Step 6: Final answer
    x = 12,918.22

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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.