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Finding the Fourth Proportional to 46,413.80, 69,620.70 and 45,722.60

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Solution

The fourth proportional to 46,413.80, 69,620.70 and 45,722.60 is: 68,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,413.80 : 69,620.70 = 45,722.60 : x
  2. Step 2: Convert to fraction form
    46,413.80/69,620.70 = 45,722.60/x
  3. Step 3: Cross multiply
    46,413.80x = 69,620.70 × 45,722.60
  4. Step 4: Simplify right side
    46,413.80x = 3,183,239,417.82
  5. Step 5: Solve for x
    x = 3,183,239,417.82/46,413.80
  6. Step 6: Final answer
    x = 68,583.90

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1.5x scale

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.