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Finding the Fourth Proportional to 3,533.50, 5,300.28 and 1,225

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Solution

The fourth proportional to 3,533.50, 5,300.28 and 1,225 is: 1,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,533.50 : 5,300.28 = 1,225 : x
  2. Step 2: Convert to fraction form
    3,533.50/5,300.28 = 1,225/x
  3. Step 3: Cross multiply
    3,533.50x = 5,300.28 × 1,225
  4. Step 4: Simplify right side
    3,533.50x = 6,492,843
  5. Step 5: Solve for x
    x = 6,492,843/3,533.50
  6. Step 6: Final answer
    x = 1,837.51

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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.