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Finding the Fourth Proportional to 6,959.93, 9,599.12 and 6,118.85

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Solution

The fourth proportional to 6,959.93, 9,599.12 and 6,118.85 is: 8,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.93 : 9,599.12 = 6,118.85 : x
  2. Step 2: Convert to fraction form
    6,959.93/9,599.12 = 6,118.85/x
  3. Step 3: Cross multiply
    6,959.93x = 9,599.12 × 6,118.85
  4. Step 4: Simplify right side
    6,959.93x = 58,735,575.41
  5. Step 5: Solve for x
    x = 58,735,575.41/6,959.93
  6. Step 6: Final answer
    x = 8,439.10

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Half scale
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Double scale
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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.