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Finding the Fourth Proportional to 22,128.08, 33,191.04 and 8,276

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Solution

The fourth proportional to 22,128.08, 33,191.04 and 8,276 is: 12,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.08 : 33,191.04 = 8,276 : x
  2. Step 2: Convert to fraction form
    22,128.08/33,191.04 = 8,276/x
  3. Step 3: Cross multiply
    22,128.08x = 33,191.04 × 8,276
  4. Step 4: Simplify right side
    22,128.08x = 274,689,047.04
  5. Step 5: Solve for x
    x = 274,689,047.04/22,128.08
  6. Step 6: Final answer
    x = 12,413.60

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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.