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Finding the Fourth Proportional to 20,362.93, 28,102.01 and 11,413.34

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Solution

The fourth proportional to 20,362.93, 28,102.01 and 11,413.34 is: 15,751.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.93 : 28,102.01 = 11,413.34 : x
  2. Step 2: Convert to fraction form
    20,362.93/28,102.01 = 11,413.34/x
  3. Step 3: Cross multiply
    20,362.93x = 28,102.01 × 11,413.34
  4. Step 4: Simplify right side
    20,362.93x = 320,737,702.62
  5. Step 5: Solve for x
    x = 320,737,702.62/20,362.93
  6. Step 6: Final answer
    x = 15,751.06

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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.