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Finding the Fourth Proportional to 63,218.70, 94,815.90 and 18,846.90

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Solution

The fourth proportional to 63,218.70, 94,815.90 and 18,846.90 is: 28,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,218.70 : 94,815.90 = 18,846.90 : x
  2. Step 2: Convert to fraction form
    63,218.70/94,815.90 = 18,846.90/x
  3. Step 3: Cross multiply
    63,218.70x = 94,815.90 × 18,846.90
  4. Step 4: Simplify right side
    63,218.70x = 1,786,985,785.71
  5. Step 5: Solve for x
    x = 1,786,985,785.71/63,218.70
  6. Step 6: Final answer
    x = 28,266.73

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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.