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Finding the Fourth Proportional to 46,603.85, 69,879.11 and 21,631.01

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Solution

The fourth proportional to 46,603.85, 69,879.11 and 21,631.01 is: 32,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,603.85 : 69,879.11 = 21,631.01 : x
  2. Step 2: Convert to fraction form
    46,603.85/69,879.11 = 21,631.01/x
  3. Step 3: Cross multiply
    46,603.85x = 69,879.11 × 21,631.01
  4. Step 4: Simplify right side
    46,603.85x = 1,511,555,269.65
  5. Step 5: Solve for x
    x = 1,511,555,269.65/46,603.85
  6. Step 6: Final answer
    x = 32,434.13

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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.