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Finding the Fourth Proportional to 53,608.70, 80,413.05 and 18,544.70

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Solution

The fourth proportional to 53,608.70, 80,413.05 and 18,544.70 is: 27,817.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,608.70 : 80,413.05 = 18,544.70 : x
  2. Step 2: Convert to fraction form
    53,608.70/80,413.05 = 18,544.70/x
  3. Step 3: Cross multiply
    53,608.70x = 80,413.05 × 18,544.70
  4. Step 4: Simplify right side
    53,608.70x = 1,491,235,888.34
  5. Step 5: Solve for x
    x = 1,491,235,888.34/53,608.70
  6. Step 6: Final answer
    x = 27,817.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.