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Finding the Fourth Proportional to 36,697.20, 55,040.40 and 10,404.60

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Solution

The fourth proportional to 36,697.20, 55,040.40 and 10,404.60 is: 15,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,697.20 : 55,040.40 = 10,404.60 : x
  2. Step 2: Convert to fraction form
    36,697.20/55,040.40 = 10,404.60/x
  3. Step 3: Cross multiply
    36,697.20x = 55,040.40 × 10,404.60
  4. Step 4: Simplify right side
    36,697.20x = 572,673,345.84
  5. Step 5: Solve for x
    x = 572,673,345.84/36,697.20
  6. Step 6: Final answer
    x = 15,605.37

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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.