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Finding the Fourth Proportional to 8,616.03, 12,982.67 and 7,090.25

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Solution

The fourth proportional to 8,616.03, 12,982.67 and 7,090.25 is: 10,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.03 : 12,982.67 = 7,090.25 : x
  2. Step 2: Convert to fraction form
    8,616.03/12,982.67 = 7,090.25/x
  3. Step 3: Cross multiply
    8,616.03x = 12,982.67 × 7,090.25
  4. Step 4: Simplify right side
    8,616.03x = 92,050,275.60
  5. Step 5: Solve for x
    x = 92,050,275.60/8,616.03
  6. Step 6: Final answer
    x = 10,683.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.