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Finding the Fourth Proportional to 56,893.74, 85,354.46 and 18,942.91

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Solution

The fourth proportional to 56,893.74, 85,354.46 and 18,942.91 is: 28,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893.74 : 85,354.46 = 18,942.91 : x
  2. Step 2: Convert to fraction form
    56,893.74/85,354.46 = 18,942.91/x
  3. Step 3: Cross multiply
    56,893.74x = 85,354.46 × 18,942.91
  4. Step 4: Simplify right side
    56,893.74x = 1,616,861,853.88
  5. Step 5: Solve for x
    x = 1,616,861,853.88/56,893.74
  6. Step 6: Final answer
    x = 28,418.98

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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.