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Finding the Fourth Proportional to 18,873.98, 28,310.87 and 4,833.98

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Solution

The fourth proportional to 18,873.98, 28,310.87 and 4,833.98 is: 7,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.98 : 28,310.87 = 4,833.98 : x
  2. Step 2: Convert to fraction form
    18,873.98/28,310.87 = 4,833.98/x
  3. Step 3: Cross multiply
    18,873.98x = 28,310.87 × 4,833.98
  4. Step 4: Simplify right side
    18,873.98x = 136,854,013.64
  5. Step 5: Solve for x
    x = 136,854,013.64/18,873.98
  6. Step 6: Final answer
    x = 7,250.94

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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.