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Finding the Fourth Proportional to 17,393.75, 26,090.63 and 8,159.75

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Solution

The fourth proportional to 17,393.75, 26,090.63 and 8,159.75 is: 12,239.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,393.75 : 26,090.63 = 8,159.75 : x
  2. Step 2: Convert to fraction form
    17,393.75/26,090.63 = 8,159.75/x
  3. Step 3: Cross multiply
    17,393.75x = 26,090.63 × 8,159.75
  4. Step 4: Simplify right side
    17,393.75x = 212,893,018.14
  5. Step 5: Solve for x
    x = 212,893,018.14/17,393.75
  6. Step 6: Final answer
    x = 12,239.63

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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.