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Finding the Fourth Proportional to 41,509.80, 62,258 and 11,920.90

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Solution

The fourth proportional to 41,509.80, 62,258 and 11,920.90 is: 17,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,509.80 : 62,258 = 11,920.90 : x
  2. Step 2: Convert to fraction form
    41,509.80/62,258 = 11,920.90/x
  3. Step 3: Cross multiply
    41,509.80x = 62,258 × 11,920.90
  4. Step 4: Simplify right side
    41,509.80x = 742,171,392.20
  5. Step 5: Solve for x
    x = 742,171,392.20/41,509.80
  6. Step 6: Final answer
    x = 17,879.43

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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.