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Finding the Fourth Proportional to 36,722.52, 55,083.78 and 9,020.52

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Solution

The fourth proportional to 36,722.52, 55,083.78 and 9,020.52 is: 13,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,722.52 : 55,083.78 = 9,020.52 : x
  2. Step 2: Convert to fraction form
    36,722.52/55,083.78 = 9,020.52/x
  3. Step 3: Cross multiply
    36,722.52x = 55,083.78 × 9,020.52
  4. Step 4: Simplify right side
    36,722.52x = 496,884,339.17
  5. Step 5: Solve for x
    x = 496,884,339.17/36,722.52
  6. Step 6: Final answer
    x = 13,530.78

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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.