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Finding the Fourth Proportional to 18,792.12, 28,187.22 and 6,312.24

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Solution

The fourth proportional to 18,792.12, 28,187.22 and 6,312.24 is: 9,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792.12 : 28,187.22 = 6,312.24 : x
  2. Step 2: Convert to fraction form
    18,792.12/28,187.22 = 6,312.24/x
  3. Step 3: Cross multiply
    18,792.12x = 28,187.22 × 6,312.24
  4. Step 4: Simplify right side
    18,792.12x = 177,924,497.57
  5. Step 5: Solve for x
    x = 177,924,497.57/18,792.12
  6. Step 6: Final answer
    x = 9,468.04

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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.