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Finding the Fourth Proportional to 5,975.40, 8,963.10 and 3,896.40

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Solution

The fourth proportional to 5,975.40, 8,963.10 and 3,896.40 is: 5,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,975.40 : 8,963.10 = 3,896.40 : x
  2. Step 2: Convert to fraction form
    5,975.40/8,963.10 = 3,896.40/x
  3. Step 3: Cross multiply
    5,975.40x = 8,963.10 × 3,896.40
  4. Step 4: Simplify right side
    5,975.40x = 34,923,822.84
  5. Step 5: Solve for x
    x = 34,923,822.84/5,975.40
  6. Step 6: Final answer
    x = 5,844.60

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.