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Finding the Fourth Proportional to 6,953.44, 9,596.88 and 3,969.40

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Solution

The fourth proportional to 6,953.44, 9,596.88 and 3,969.40 is: 5,478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,953.44 : 9,596.88 = 3,969.40 : x
  2. Step 2: Convert to fraction form
    6,953.44/9,596.88 = 3,969.40/x
  3. Step 3: Cross multiply
    6,953.44x = 9,596.88 × 3,969.40
  4. Step 4: Simplify right side
    6,953.44x = 38,093,855.47
  5. Step 5: Solve for x
    x = 38,093,855.47/6,953.44
  6. Step 6: Final answer
    x = 5,478.42

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Half scale
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Double scale
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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.