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Finding the Fourth Proportional to 8,936.10, 13,413.96 and 7,099.02

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Solution

The fourth proportional to 8,936.10, 13,413.96 and 7,099.02 is: 10,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.10 : 13,413.96 = 7,099.02 : x
  2. Step 2: Convert to fraction form
    8,936.10/13,413.96 = 7,099.02/x
  3. Step 3: Cross multiply
    8,936.10x = 13,413.96 × 7,099.02
  4. Step 4: Simplify right side
    8,936.10x = 95,225,970.32
  5. Step 5: Solve for x
    x = 95,225,970.32/8,936.10
  6. Step 6: Final answer
    x = 10,656.32

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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.