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Finding the Fourth Proportional to 6,289.62, 8,682.54 and 4,611.12

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Solution

The fourth proportional to 6,289.62, 8,682.54 and 4,611.12 is: 6,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.62 : 8,682.54 = 4,611.12 : x
  2. Step 2: Convert to fraction form
    6,289.62/8,682.54 = 4,611.12/x
  3. Step 3: Cross multiply
    6,289.62x = 8,682.54 × 4,611.12
  4. Step 4: Simplify right side
    6,289.62x = 40,036,233.84
  5. Step 5: Solve for x
    x = 40,036,233.84/6,289.62
  6. Step 6: Final answer
    x = 6,365.45

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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.