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Finding the Fourth Proportional to 8,675.04, 12,982.32 and 7,096.80

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Solution

The fourth proportional to 8,675.04, 12,982.32 and 7,096.80 is: 10,620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.04 : 12,982.32 = 7,096.80 : x
  2. Step 2: Convert to fraction form
    8,675.04/12,982.32 = 7,096.80/x
  3. Step 3: Cross multiply
    8,675.04x = 12,982.32 × 7,096.80
  4. Step 4: Simplify right side
    8,675.04x = 92,132,928.58
  5. Step 5: Solve for x
    x = 92,132,928.58/8,675.04
  6. Step 6: Final answer
    x = 10,620.46

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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.