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Finding the Fourth Proportional to 58,388.76, 87,595.92 and 18,949.84

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Solution

The fourth proportional to 58,388.76, 87,595.92 and 18,949.84 is: 28,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,388.76 : 87,595.92 = 18,949.84 : x
  2. Step 2: Convert to fraction form
    58,388.76/87,595.92 = 18,949.84/x
  3. Step 3: Cross multiply
    58,388.76x = 87,595.92 × 18,949.84
  4. Step 4: Simplify right side
    58,388.76x = 1,659,928,668.65
  5. Step 5: Solve for x
    x = 1,659,928,668.65/58,388.76
  6. Step 6: Final answer
    x = 28,428.91

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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.