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Finding the Fourth Proportional to 58,008.78, 87,017.37 and 18,022.50

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Solution

The fourth proportional to 58,008.78, 87,017.37 and 18,022.50 is: 27,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,008.78 : 87,017.37 = 18,022.50 : x
  2. Step 2: Convert to fraction form
    58,008.78/87,017.37 = 18,022.50/x
  3. Step 3: Cross multiply
    58,008.78x = 87,017.37 × 18,022.50
  4. Step 4: Simplify right side
    58,008.78x = 1,568,270,550.83
  5. Step 5: Solve for x
    x = 1,568,270,550.83/58,008.78
  6. Step 6: Final answer
    x = 27,035.05

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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.