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Finding the Fourth Proportional to 18,415.86, 25,413.93 and 10,032.18

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Solution

The fourth proportional to 18,415.86, 25,413.93 and 10,032.18 is: 13,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.86 : 25,413.93 = 10,032.18 : x
  2. Step 2: Convert to fraction form
    18,415.86/25,413.93 = 10,032.18/x
  3. Step 3: Cross multiply
    18,415.86x = 25,413.93 × 10,032.18
  4. Step 4: Simplify right side
    18,415.86x = 254,957,120.27
  5. Step 5: Solve for x
    x = 254,957,120.27/18,415.86
  6. Step 6: Final answer
    x = 13,844.43

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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.