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Finding the Fourth Proportional to 58,300.62, 87,429.48 and 20,850.54

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Solution

The fourth proportional to 58,300.62, 87,429.48 and 20,850.54 is: 31,268.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,300.62 : 87,429.48 = 20,850.54 : x
  2. Step 2: Convert to fraction form
    58,300.62/87,429.48 = 20,850.54/x
  3. Step 3: Cross multiply
    58,300.62x = 87,429.48 × 20,850.54
  4. Step 4: Simplify right side
    58,300.62x = 1,822,951,869.92
  5. Step 5: Solve for x
    x = 1,822,951,869.92/58,300.62
  6. Step 6: Final answer
    x = 31,268.14

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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.