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Finding the Fourth Proportional to 8,244.78, 12,368.99 and 4,087.05

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Solution

The fourth proportional to 8,244.78, 12,368.99 and 4,087.05 is: 6,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,244.78 : 12,368.99 = 4,087.05 : x
  2. Step 2: Convert to fraction form
    8,244.78/12,368.99 = 4,087.05/x
  3. Step 3: Cross multiply
    8,244.78x = 12,368.99 × 4,087.05
  4. Step 4: Simplify right side
    8,244.78x = 50,552,680.58
  5. Step 5: Solve for x
    x = 50,552,680.58/8,244.78
  6. Step 6: Final answer
    x = 6,131.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.