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Finding the Fourth Proportional to 17,361.78, 23,959.26 and 9,403.98

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Solution

The fourth proportional to 17,361.78, 23,959.26 and 9,403.98 is: 12,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,361.78 : 23,959.26 = 9,403.98 : x
  2. Step 2: Convert to fraction form
    17,361.78/23,959.26 = 9,403.98/x
  3. Step 3: Cross multiply
    17,361.78x = 23,959.26 × 9,403.98
  4. Step 4: Simplify right side
    17,361.78x = 225,312,401.85
  5. Step 5: Solve for x
    x = 225,312,401.85/17,361.78
  6. Step 6: Final answer
    x = 12,977.49

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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.