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Finding the Fourth Proportional to 17,157.88, 23,670.94 and 10,438.12

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Solution

The fourth proportional to 17,157.88, 23,670.94 and 10,438.12 is: 14,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,157.88 : 23,670.94 = 10,438.12 : x
  2. Step 2: Convert to fraction form
    17,157.88/23,670.94 = 10,438.12/x
  3. Step 3: Cross multiply
    17,157.88x = 23,670.94 × 10,438.12
  4. Step 4: Simplify right side
    17,157.88x = 247,080,112.23
  5. Step 5: Solve for x
    x = 247,080,112.23/17,157.88
  6. Step 6: Final answer
    x = 14,400.39

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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.