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Finding the Fourth Proportional to 8,745.52, 12,068.58 and 4,766.80

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Solution

The fourth proportional to 8,745.52, 12,068.58 and 4,766.80 is: 6,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.52 : 12,068.58 = 4,766.80 : x
  2. Step 2: Convert to fraction form
    8,745.52/12,068.58 = 4,766.80/x
  3. Step 3: Cross multiply
    8,745.52x = 12,068.58 × 4,766.80
  4. Step 4: Simplify right side
    8,745.52x = 57,528,507.14
  5. Step 5: Solve for x
    x = 57,528,507.14/8,745.52
  6. Step 6: Final answer
    x = 6,578.05

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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.