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Finding the Fourth Proportional to 60,558.76, 90,847.26 and 19,009

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Solution

The fourth proportional to 60,558.76, 90,847.26 and 19,009 is: 28,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,558.76 : 90,847.26 = 19,009 : x
  2. Step 2: Convert to fraction form
    60,558.76/90,847.26 = 19,009/x
  3. Step 3: Cross multiply
    60,558.76x = 90,847.26 × 19,009
  4. Step 4: Simplify right side
    60,558.76x = 1,726,915,565.34
  5. Step 5: Solve for x
    x = 1,726,915,565.34/60,558.76
  6. Step 6: Final answer
    x = 28,516.36

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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.