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Finding the Fourth Proportional to 3,606.54, 5,409.20 and 1,008.88

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Solution

The fourth proportional to 3,606.54, 5,409.20 and 1,008.88 is: 1,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.54 : 5,409.20 = 1,008.88 : x
  2. Step 2: Convert to fraction form
    3,606.54/5,409.20 = 1,008.88/x
  3. Step 3: Cross multiply
    3,606.54x = 5,409.20 × 1,008.88
  4. Step 4: Simplify right side
    3,606.54x = 5,457,233.70
  5. Step 5: Solve for x
    x = 5,457,233.70/3,606.54
  6. Step 6: Final answer
    x = 1,513.15

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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.