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Finding the Fourth Proportional to 58,602.30, 87,863.43 and 28,191.39

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Solution

The fourth proportional to 58,602.30, 87,863.43 and 28,191.39 is: 42,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,602.30 : 87,863.43 = 28,191.39 : x
  2. Step 2: Convert to fraction form
    58,602.30/87,863.43 = 28,191.39/x
  3. Step 3: Cross multiply
    58,602.30x = 87,863.43 × 28,191.39
  4. Step 4: Simplify right side
    58,602.30x = 2,476,992,221.87
  5. Step 5: Solve for x
    x = 2,476,992,221.87/58,602.30
  6. Step 6: Final answer
    x = 42,267.83

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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.