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Finding the Fourth Proportional to 8,768.49, 12,099.00 and 8,325.18

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Solution

The fourth proportional to 8,768.49, 12,099.00 and 8,325.18 is: 11,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.49 : 12,099.00 = 8,325.18 : x
  2. Step 2: Convert to fraction form
    8,768.49/12,099.00 = 8,325.18/x
  3. Step 3: Cross multiply
    8,768.49x = 12,099.00 × 8,325.18
  4. Step 4: Simplify right side
    8,768.49x = 100,726,384.04
  5. Step 5: Solve for x
    x = 100,726,384.04/8,768.49
  6. Step 6: Final answer
    x = 11,487.32

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Half scale
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Double scale
Find fourth proportional to 8,769.49, 12,100.38 and 8,326.18
Similar ratio
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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.