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Finding the Fourth Proportional to 3,533.81, 5,300.82 and 936.75

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Solution

The fourth proportional to 3,533.81, 5,300.82 and 936.75 is: 1,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,533.81 : 5,300.82 = 936.75 : x
  2. Step 2: Convert to fraction form
    3,533.81/5,300.82 = 936.75/x
  3. Step 3: Cross multiply
    3,533.81x = 5,300.82 × 936.75
  4. Step 4: Simplify right side
    3,533.81x = 4,965,543.14
  5. Step 5: Solve for x
    x = 4,965,543.14/3,533.81
  6. Step 6: Final answer
    x = 1,405.15

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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.