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Finding the Fourth Proportional to 18,415.76, 25,413.90 and 10,032.26

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Solution

The fourth proportional to 18,415.76, 25,413.90 and 10,032.26 is: 13,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.76 : 25,413.90 = 10,032.26 : x
  2. Step 2: Convert to fraction form
    18,415.76/25,413.90 = 10,032.26/x
  3. Step 3: Cross multiply
    18,415.76x = 25,413.90 × 10,032.26
  4. Step 4: Simplify right side
    18,415.76x = 254,958,852.41
  5. Step 5: Solve for x
    x = 254,958,852.41/18,415.76
  6. Step 6: Final answer
    x = 13,844.60

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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.