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Finding the Fourth Proportional to 8,745, 12,068.22 and 5,019

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Solution

The fourth proportional to 8,745, 12,068.22 and 5,019 is: 6,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745 : 12,068.22 = 5,019 : x
  2. Step 2: Convert to fraction form
    8,745/12,068.22 = 5,019/x
  3. Step 3: Cross multiply
    8,745x = 12,068.22 × 5,019
  4. Step 4: Simplify right side
    8,745x = 60,570,396.18
  5. Step 5: Solve for x
    x = 60,570,396.18/8,745
  6. Step 6: Final answer
    x = 6,926.29

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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.