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Finding the Fourth Proportional to 36,852.52, 55,249.80 and 17,128.40

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Solution

The fourth proportional to 36,852.52, 55,249.80 and 17,128.40 is: 25,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,852.52 : 55,249.80 = 17,128.40 : x
  2. Step 2: Convert to fraction form
    36,852.52/55,249.80 = 17,128.40/x
  3. Step 3: Cross multiply
    36,852.52x = 55,249.80 × 17,128.40
  4. Step 4: Simplify right side
    36,852.52x = 946,340,674.32
  5. Step 5: Solve for x
    x = 946,340,674.32/36,852.52
  6. Step 6: Final answer
    x = 25,679.13

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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.