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Finding the Fourth Proportional to 8,841.21, 12,186.18 and 7,583.70

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Solution

The fourth proportional to 8,841.21, 12,186.18 and 7,583.70 is: 10,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.21 : 12,186.18 = 7,583.70 : x
  2. Step 2: Convert to fraction form
    8,841.21/12,186.18 = 7,583.70/x
  3. Step 3: Cross multiply
    8,841.21x = 12,186.18 × 7,583.70
  4. Step 4: Simplify right side
    8,841.21x = 92,416,333.27
  5. Step 5: Solve for x
    x = 92,416,333.27/8,841.21
  6. Step 6: Final answer
    x = 10,452.91

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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.