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Finding the Fourth Proportional to 8,504.10, 11,737.80 and 5,676.21

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Solution

The fourth proportional to 8,504.10, 11,737.80 and 5,676.21 is: 7,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,504.10 : 11,737.80 = 5,676.21 : x
  2. Step 2: Convert to fraction form
    8,504.10/11,737.80 = 5,676.21/x
  3. Step 3: Cross multiply
    8,504.10x = 11,737.80 × 5,676.21
  4. Step 4: Simplify right side
    8,504.10x = 66,626,217.74
  5. Step 5: Solve for x
    x = 66,626,217.74/8,504.10
  6. Step 6: Final answer
    x = 7,834.60

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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.