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Finding the Fourth Proportional to 57,413.80, 85,667.09 and 49,637.80

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Solution

The fourth proportional to 57,413.80, 85,667.09 and 49,637.80 is: 74,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,413.80 : 85,667.09 = 49,637.80 : x
  2. Step 2: Convert to fraction form
    57,413.80/85,667.09 = 49,637.80/x
  3. Step 3: Cross multiply
    57,413.80x = 85,667.09 × 49,637.80
  4. Step 4: Simplify right side
    57,413.80x = 4,252,325,880.00
  5. Step 5: Solve for x
    x = 4,252,325,880.00/57,413.80
  6. Step 6: Final answer
    x = 74,064.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.