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Finding the Fourth Proportional to 18,415.69, 25,413.65 and 10,032.19

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Solution

The fourth proportional to 18,415.69, 25,413.65 and 10,032.19 is: 13,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.69 : 25,413.65 = 10,032.19 : x
  2. Step 2: Convert to fraction form
    18,415.69/25,413.65 = 10,032.19/x
  3. Step 3: Cross multiply
    18,415.69x = 25,413.65 × 10,032.19
  4. Step 4: Simplify right side
    18,415.69x = 254,954,489.32
  5. Step 5: Solve for x
    x = 254,954,489.32/18,415.69
  6. Step 6: Final answer
    x = 13,844.42

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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.