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Finding the Fourth Proportional to 3,538.56, 5,307.36 and 941.64

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Solution

The fourth proportional to 3,538.56, 5,307.36 and 941.64 is: 1,412.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.56 : 5,307.36 = 941.64 : x
  2. Step 2: Convert to fraction form
    3,538.56/5,307.36 = 941.64/x
  3. Step 3: Cross multiply
    3,538.56x = 5,307.36 × 941.64
  4. Step 4: Simplify right side
    3,538.56x = 4,997,622.47
  5. Step 5: Solve for x
    x = 4,997,622.47/3,538.56
  6. Step 6: Final answer
    x = 1,412.33

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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.