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Finding the Fourth Proportional to 58,626.99, 87,907.68 and 19,173.51

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Solution

The fourth proportional to 58,626.99, 87,907.68 and 19,173.51 is: 28,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,626.99 : 87,907.68 = 19,173.51 : x
  2. Step 2: Convert to fraction form
    58,626.99/87,907.68 = 19,173.51/x
  3. Step 3: Cross multiply
    58,626.99x = 87,907.68 × 19,173.51
  4. Step 4: Simplify right side
    58,626.99x = 1,685,498,781.56
  5. Step 5: Solve for x
    x = 1,685,498,781.56/58,626.99
  6. Step 6: Final answer
    x = 28,749.54

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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.