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Finding the Fourth Proportional to 8,745.32, 12,068.53 and 4,766.42

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Solution

The fourth proportional to 8,745.32, 12,068.53 and 4,766.42 is: 6,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.32 : 12,068.53 = 4,766.42 : x
  2. Step 2: Convert to fraction form
    8,745.32/12,068.53 = 4,766.42/x
  3. Step 3: Cross multiply
    8,745.32x = 12,068.53 × 4,766.42
  4. Step 4: Simplify right side
    8,745.32x = 57,523,701.02
  5. Step 5: Solve for x
    x = 57,523,701.02/8,745.32
  6. Step 6: Final answer
    x = 6,577.65

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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.