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Finding the Fourth Proportional to 36,893.20, 55,332.60 and 11,927.20

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Solution

The fourth proportional to 36,893.20, 55,332.60 and 11,927.20 is: 17,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,893.20 : 55,332.60 = 11,927.20 : x
  2. Step 2: Convert to fraction form
    36,893.20/55,332.60 = 11,927.20/x
  3. Step 3: Cross multiply
    36,893.20x = 55,332.60 × 11,927.20
  4. Step 4: Simplify right side
    36,893.20x = 659,962,986.72
  5. Step 5: Solve for x
    x = 659,962,986.72/36,893.20
  6. Step 6: Final answer
    x = 17,888.47

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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.