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Finding the Fourth Proportional to 17,318.90, 23,900.05 and 9,361.11

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Solution

The fourth proportional to 17,318.90, 23,900.05 and 9,361.11 is: 12,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,318.90 : 23,900.05 = 9,361.11 : x
  2. Step 2: Convert to fraction form
    17,318.90/23,900.05 = 9,361.11/x
  3. Step 3: Cross multiply
    17,318.90x = 23,900.05 × 9,361.11
  4. Step 4: Simplify right side
    17,318.90x = 223,730,997.06
  5. Step 5: Solve for x
    x = 223,730,997.06/17,318.90
  6. Step 6: Final answer
    x = 12,918.31

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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.