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Finding the Fourth Proportional to 10,413.12, 14,368.86 and 5,936.88

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Solution

The fourth proportional to 10,413.12, 14,368.86 and 5,936.88 is: 8,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,413.12 : 14,368.86 = 5,936.88 : x
  2. Step 2: Convert to fraction form
    10,413.12/14,368.86 = 5,936.88/x
  3. Step 3: Cross multiply
    10,413.12x = 14,368.86 × 5,936.88
  4. Step 4: Simplify right side
    10,413.12x = 85,306,197.56
  5. Step 5: Solve for x
    x = 85,306,197.56/10,413.12
  6. Step 6: Final answer
    x = 8,192.18

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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.