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Finding the Fourth Proportional to 3,533.12, 5,300.10 and 936.08

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Solution

The fourth proportional to 3,533.12, 5,300.10 and 936.08 is: 1,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,533.12 : 5,300.10 = 936.08 : x
  2. Step 2: Convert to fraction form
    3,533.12/5,300.10 = 936.08/x
  3. Step 3: Cross multiply
    3,533.12x = 5,300.10 × 936.08
  4. Step 4: Simplify right side
    3,533.12x = 4,961,317.61
  5. Step 5: Solve for x
    x = 4,961,317.61/3,533.12
  6. Step 6: Final answer
    x = 1,404.23

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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.