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Finding the Fourth Proportional to 8,413.88, 11,611.05 and 4,877.01

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Solution

The fourth proportional to 8,413.88, 11,611.05 and 4,877.01 is: 6,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.88 : 11,611.05 = 4,877.01 : x
  2. Step 2: Convert to fraction form
    8,413.88/11,611.05 = 4,877.01/x
  3. Step 3: Cross multiply
    8,413.88x = 11,611.05 × 4,877.01
  4. Step 4: Simplify right side
    8,413.88x = 56,627,206.96
  5. Step 5: Solve for x
    x = 56,627,206.96/8,413.88
  6. Step 6: Final answer
    x = 6,730.22

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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.