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Finding the Fourth Proportional to 39,137.91, 58,658.75 and 18,048.67

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Solution

The fourth proportional to 39,137.91, 58,658.75 and 18,048.67 is: 27,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.91 : 58,658.75 = 18,048.67 : x
  2. Step 2: Convert to fraction form
    39,137.91/58,658.75 = 18,048.67/x
  3. Step 3: Cross multiply
    39,137.91x = 58,658.75 × 18,048.67
  4. Step 4: Simplify right side
    39,137.91x = 1,058,712,421.36
  5. Step 5: Solve for x
    x = 1,058,712,421.36/39,137.91
  6. Step 6: Final answer
    x = 27,050.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.