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Finding the Fourth Proportional to 58,543.80, 87,815.34 and 19,100.94

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Solution

The fourth proportional to 58,543.80, 87,815.34 and 19,100.94 is: 28,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,543.80 : 87,815.34 = 19,100.94 : x
  2. Step 2: Convert to fraction form
    58,543.80/87,815.34 = 19,100.94/x
  3. Step 3: Cross multiply
    58,543.80x = 87,815.34 × 19,100.94
  4. Step 4: Simplify right side
    58,543.80x = 1,677,355,540.42
  5. Step 5: Solve for x
    x = 1,677,355,540.42/58,543.80
  6. Step 6: Final answer
    x = 28,651.29

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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.