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Finding the Fourth Proportional to 18,371.94, 25,352.64 and 10,413.96

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Solution

The fourth proportional to 18,371.94, 25,352.64 and 10,413.96 is: 14,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.94 : 25,352.64 = 10,413.96 : x
  2. Step 2: Convert to fraction form
    18,371.94/25,352.64 = 10,413.96/x
  3. Step 3: Cross multiply
    18,371.94x = 25,352.64 × 10,413.96
  4. Step 4: Simplify right side
    18,371.94x = 264,021,378.85
  5. Step 5: Solve for x
    x = 264,021,378.85/18,371.94
  6. Step 6: Final answer
    x = 14,370.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.