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Finding the Fourth Proportional to 18,792.52, 28,186.62 and 6,312.04

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Solution

The fourth proportional to 18,792.52, 28,186.62 and 6,312.04 is: 9,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792.52 : 28,186.62 = 6,312.04 : x
  2. Step 2: Convert to fraction form
    18,792.52/28,186.62 = 6,312.04/x
  3. Step 3: Cross multiply
    18,792.52x = 28,186.62 × 6,312.04
  4. Step 4: Simplify right side
    18,792.52x = 177,915,072.90
  5. Step 5: Solve for x
    x = 177,915,072.90/18,792.52
  6. Step 6: Final answer
    x = 9,467.33

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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.