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Finding the Fourth Proportional to 39,592.92, 59,413.50 and 20,619.48

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Solution

The fourth proportional to 39,592.92, 59,413.50 and 20,619.48 is: 30,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,592.92 : 59,413.50 = 20,619.48 : x
  2. Step 2: Convert to fraction form
    39,592.92/59,413.50 = 20,619.48/x
  3. Step 3: Cross multiply
    39,592.92x = 59,413.50 × 20,619.48
  4. Step 4: Simplify right side
    39,592.92x = 1,225,075,474.98
  5. Step 5: Solve for x
    x = 1,225,075,474.98/39,592.92
  6. Step 6: Final answer
    x = 30,941.78

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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.