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Finding the Fourth Proportional to 58,571.95, 87,863.32 and 19,129.27

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Solution

The fourth proportional to 58,571.95, 87,863.32 and 19,129.27 is: 28,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,571.95 : 87,863.32 = 19,129.27 : x
  2. Step 2: Convert to fraction form
    58,571.95/87,863.32 = 19,129.27/x
  3. Step 3: Cross multiply
    58,571.95x = 87,863.32 × 19,129.27
  4. Step 4: Simplify right side
    58,571.95x = 1,680,761,171.38
  5. Step 5: Solve for x
    x = 1,680,761,171.38/58,571.95
  6. Step 6: Final answer
    x = 28,695.67

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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.