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Finding the Fourth Proportional to 34,029.76, 46,961.22 and 19,879.60

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Solution

The fourth proportional to 34,029.76, 46,961.22 and 19,879.60 is: 27,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,029.76 : 46,961.22 = 19,879.60 : x
  2. Step 2: Convert to fraction form
    34,029.76/46,961.22 = 19,879.60/x
  3. Step 3: Cross multiply
    34,029.76x = 46,961.22 × 19,879.60
  4. Step 4: Simplify right side
    34,029.76x = 933,570,269.11
  5. Step 5: Solve for x
    x = 933,570,269.11/34,029.76
  6. Step 6: Final answer
    x = 27,433.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.