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Finding the Fourth Proportional to 8,766.78, 13,155.03 and 3,572.25

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Solution

The fourth proportional to 8,766.78, 13,155.03 and 3,572.25 is: 5,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.78 : 13,155.03 = 3,572.25 : x
  2. Step 2: Convert to fraction form
    8,766.78/13,155.03 = 3,572.25/x
  3. Step 3: Cross multiply
    8,766.78x = 13,155.03 × 3,572.25
  4. Step 4: Simplify right side
    8,766.78x = 46,993,055.92
  5. Step 5: Solve for x
    x = 46,993,055.92/8,766.78
  6. Step 6: Final answer
    x = 5,360.36

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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.