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Finding the Fourth Proportional to 8,880.86, 12,255.50 and 4,902.02

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Solution

The fourth proportional to 8,880.86, 12,255.50 and 4,902.02 is: 6,764.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.86 : 12,255.50 = 4,902.02 : x
  2. Step 2: Convert to fraction form
    8,880.86/12,255.50 = 4,902.02/x
  3. Step 3: Cross multiply
    8,880.86x = 12,255.50 × 4,902.02
  4. Step 4: Simplify right side
    8,880.86x = 60,076,706.11
  5. Step 5: Solve for x
    x = 60,076,706.11/8,880.86
  6. Step 6: Final answer
    x = 6,764.74

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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.