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Finding the Fourth Proportional to 58,346.92, 87,498.78 and 20,896.68

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Solution

The fourth proportional to 58,346.92, 87,498.78 and 20,896.68 is: 31,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,346.92 : 87,498.78 = 20,896.68 : x
  2. Step 2: Convert to fraction form
    58,346.92/87,498.78 = 20,896.68/x
  3. Step 3: Cross multiply
    58,346.92x = 87,498.78 × 20,896.68
  4. Step 4: Simplify right side
    58,346.92x = 1,828,434,006.05
  5. Step 5: Solve for x
    x = 1,828,434,006.05/58,346.92
  6. Step 6: Final answer
    x = 31,337.28

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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.