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Finding the Fourth Proportional to 8,832.79, 13,251.09 and 2,989.27

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Solution

The fourth proportional to 8,832.79, 13,251.09 and 2,989.27 is: 4,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.79 : 13,251.09 = 2,989.27 : x
  2. Step 2: Convert to fraction form
    8,832.79/13,251.09 = 2,989.27/x
  3. Step 3: Cross multiply
    8,832.79x = 13,251.09 × 2,989.27
  4. Step 4: Simplify right side
    8,832.79x = 39,611,085.80
  5. Step 5: Solve for x
    x = 39,611,085.80/8,832.79
  6. Step 6: Final answer
    x = 4,484.55

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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.