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Finding the Fourth Proportional to 40,382.84, 60,564.84 and 15,413.72

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Solution

The fourth proportional to 40,382.84, 60,564.84 and 15,413.72 is: 23,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,382.84 : 60,564.84 = 15,413.72 : x
  2. Step 2: Convert to fraction form
    40,382.84/60,564.84 = 15,413.72/x
  3. Step 3: Cross multiply
    40,382.84x = 60,564.84 × 15,413.72
  4. Step 4: Simplify right side
    40,382.84x = 933,529,485.60
  5. Step 5: Solve for x
    x = 933,529,485.60/40,382.84
  6. Step 6: Final answer
    x = 23,116.98

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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.