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Finding the Fourth Proportional to 36,989.98, 51,046.19 and 20,222.98

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Solution

The fourth proportional to 36,989.98, 51,046.19 and 20,222.98 is: 27,907.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,989.98 : 51,046.19 = 20,222.98 : x
  2. Step 2: Convert to fraction form
    36,989.98/51,046.19 = 20,222.98/x
  3. Step 3: Cross multiply
    36,989.98x = 51,046.19 × 20,222.98
  4. Step 4: Simplify right side
    36,989.98x = 1,032,306,079.45
  5. Step 5: Solve for x
    x = 1,032,306,079.45/36,989.98
  6. Step 6: Final answer
    x = 27,907.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.