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Finding the Fourth Proportional to 51,326.97, 76,978.85 and 16,247.49

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Solution

The fourth proportional to 51,326.97, 76,978.85 and 16,247.49 is: 24,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,326.97 : 76,978.85 = 16,247.49 : x
  2. Step 2: Convert to fraction form
    51,326.97/76,978.85 = 16,247.49/x
  3. Step 3: Cross multiply
    51,326.97x = 76,978.85 × 16,247.49
  4. Step 4: Simplify right side
    51,326.97x = 1,250,713,014.35
  5. Step 5: Solve for x
    x = 1,250,713,014.35/51,326.97
  6. Step 6: Final answer
    x = 24,367.56

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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.