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Finding the Fourth Proportional to 8,792.22, 12,133.49 and 5,257.47

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Solution

The fourth proportional to 8,792.22, 12,133.49 and 5,257.47 is: 7,255.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.22 : 12,133.49 = 5,257.47 : x
  2. Step 2: Convert to fraction form
    8,792.22/12,133.49 = 5,257.47/x
  3. Step 3: Cross multiply
    8,792.22x = 12,133.49 × 5,257.47
  4. Step 4: Simplify right side
    8,792.22x = 63,791,433.38
  5. Step 5: Solve for x
    x = 63,791,433.38/8,792.22
  6. Step 6: Final answer
    x = 7,255.44

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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.