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Finding the Fourth Proportional to 14,879.98, 20,539.43 and 10,413.06

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Solution

The fourth proportional to 14,879.98, 20,539.43 and 10,413.06 is: 14,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.98 : 20,539.43 = 10,413.06 : x
  2. Step 2: Convert to fraction form
    14,879.98/20,539.43 = 10,413.06/x
  3. Step 3: Cross multiply
    14,879.98x = 20,539.43 × 10,413.06
  4. Step 4: Simplify right side
    14,879.98x = 213,878,316.96
  5. Step 5: Solve for x
    x = 213,878,316.96/14,879.98
  6. Step 6: Final answer
    x = 14,373.56

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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.