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Finding the Fourth Proportional to 5,263.78, 7,895.05 and 1,368.49

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Solution

The fourth proportional to 5,263.78, 7,895.05 and 1,368.49 is: 2,052.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.78 : 7,895.05 = 1,368.49 : x
  2. Step 2: Convert to fraction form
    5,263.78/7,895.05 = 1,368.49/x
  3. Step 3: Cross multiply
    5,263.78x = 7,895.05 × 1,368.49
  4. Step 4: Simplify right side
    5,263.78x = 10,804,257.50
  5. Step 5: Solve for x
    x = 10,804,257.50/5,263.78
  6. Step 6: Final answer
    x = 2,052.57

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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.