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Finding the Fourth Proportional to 17,422.40, 26,114.40 and 9,636.80

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Solution

The fourth proportional to 17,422.40, 26,114.40 and 9,636.80 is: 14,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,422.40 : 26,114.40 = 9,636.80 : x
  2. Step 2: Convert to fraction form
    17,422.40/26,114.40 = 9,636.80/x
  3. Step 3: Cross multiply
    17,422.40x = 26,114.40 × 9,636.80
  4. Step 4: Simplify right side
    17,422.40x = 251,659,249.92
  5. Step 5: Solve for x
    x = 251,659,249.92/17,422.40
  6. Step 6: Final answer
    x = 14,444.58

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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.