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Finding the Fourth Proportional to 8,745.18, 12,068.39 and 4,968.56

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Solution

The fourth proportional to 8,745.18, 12,068.39 and 4,968.56 is: 6,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.18 : 12,068.39 = 4,968.56 : x
  2. Step 2: Convert to fraction form
    8,745.18/12,068.39 = 4,968.56/x
  3. Step 3: Cross multiply
    8,745.18x = 12,068.39 × 4,968.56
  4. Step 4: Simplify right side
    8,745.18x = 59,962,459.48
  5. Step 5: Solve for x
    x = 59,962,459.48/8,745.18
  6. Step 6: Final answer
    x = 6,856.63

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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.