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Finding the Fourth Proportional to 46,062.78, 69,120.82 and 19,406.89

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Solution

The fourth proportional to 46,062.78, 69,120.82 and 19,406.89 is: 29,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,062.78 : 69,120.82 = 19,406.89 : x
  2. Step 2: Convert to fraction form
    46,062.78/69,120.82 = 19,406.89/x
  3. Step 3: Cross multiply
    46,062.78x = 69,120.82 × 19,406.89
  4. Step 4: Simplify right side
    46,062.78x = 1,341,420,206.53
  5. Step 5: Solve for x
    x = 1,341,420,206.53/46,062.78
  6. Step 6: Final answer
    x = 29,121.57

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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.