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Finding the Fourth Proportional to 8,647.95, 11,927.75 and 5,960.04

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Solution

The fourth proportional to 8,647.95, 11,927.75 and 5,960.04 is: 8,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.95 : 11,927.75 = 5,960.04 : x
  2. Step 2: Convert to fraction form
    8,647.95/11,927.75 = 5,960.04/x
  3. Step 3: Cross multiply
    8,647.95x = 11,927.75 × 5,960.04
  4. Step 4: Simplify right side
    8,647.95x = 71,089,867.11
  5. Step 5: Solve for x
    x = 71,089,867.11/8,647.95
  6. Step 6: Final answer
    x = 8,220.43

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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.