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Finding the Fourth Proportional to 8,662.50, 11,955.42 and 4,886.44

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Solution

The fourth proportional to 8,662.50, 11,955.42 and 4,886.44 is: 6,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.50 : 11,955.42 = 4,886.44 : x
  2. Step 2: Convert to fraction form
    8,662.50/11,955.42 = 4,886.44/x
  3. Step 3: Cross multiply
    8,662.50x = 11,955.42 × 4,886.44
  4. Step 4: Simplify right side
    8,662.50x = 58,419,442.50
  5. Step 5: Solve for x
    x = 58,419,442.50/8,662.50
  6. Step 6: Final answer
    x = 6,743.95

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1.5x scale

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.