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Finding the Fourth Proportional to 8,791.84, 13,176.12 and 5,270.48

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Solution

The fourth proportional to 8,791.84, 13,176.12 and 5,270.48 is: 7,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.84 : 13,176.12 = 5,270.48 : x
  2. Step 2: Convert to fraction form
    8,791.84/13,176.12 = 5,270.48/x
  3. Step 3: Cross multiply
    8,791.84x = 13,176.12 × 5,270.48
  4. Step 4: Simplify right side
    8,791.84x = 69,444,476.94
  5. Step 5: Solve for x
    x = 69,444,476.94/8,791.84
  6. Step 6: Final answer
    x = 7,898.74

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1.5x scale

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.