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Finding the Fourth Proportional to 17,388.25, 26,087.42 and 5,076.25

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Solution

The fourth proportional to 17,388.25, 26,087.42 and 5,076.25 is: 7,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.25 : 26,087.42 = 5,076.25 : x
  2. Step 2: Convert to fraction form
    17,388.25/26,087.42 = 5,076.25/x
  3. Step 3: Cross multiply
    17,388.25x = 26,087.42 × 5,076.25
  4. Step 4: Simplify right side
    17,388.25x = 132,426,240.39
  5. Step 5: Solve for x
    x = 132,426,240.39/17,388.25
  6. Step 6: Final answer
    x = 7,615.85

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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.