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Finding the Fourth Proportional to 46,379.87, 69,555.87 and 19,725.63

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Solution

The fourth proportional to 46,379.87, 69,555.87 and 19,725.63 is: 29,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,379.87 : 69,555.87 = 19,725.63 : x
  2. Step 2: Convert to fraction form
    46,379.87/69,555.87 = 19,725.63/x
  3. Step 3: Cross multiply
    46,379.87x = 69,555.87 × 19,725.63
  4. Step 4: Simplify right side
    46,379.87x = 1,372,033,355.95
  5. Step 5: Solve for x
    x = 1,372,033,355.95/46,379.87
  6. Step 6: Final answer
    x = 29,582.52

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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.