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Finding the Fourth Proportional to 57,300.58, 85,952 and 19,861.86

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Solution

The fourth proportional to 57,300.58, 85,952 and 19,861.86 is: 29,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,300.58 : 85,952 = 19,861.86 : x
  2. Step 2: Convert to fraction form
    57,300.58/85,952 = 19,861.86/x
  3. Step 3: Cross multiply
    57,300.58x = 85,952 × 19,861.86
  4. Step 4: Simplify right side
    57,300.58x = 1,707,166,590.72
  5. Step 5: Solve for x
    x = 1,707,166,590.72/57,300.58
  6. Step 6: Final answer
    x = 29,793.18

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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.