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Finding the Fourth Proportional to 3,706.54, 5,559.80 and 1,109.48

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Solution

The fourth proportional to 3,706.54, 5,559.80 and 1,109.48 is: 1,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.54 : 5,559.80 = 1,109.48 : x
  2. Step 2: Convert to fraction form
    3,706.54/5,559.80 = 1,109.48/x
  3. Step 3: Cross multiply
    3,706.54x = 5,559.80 × 1,109.48
  4. Step 4: Simplify right side
    3,706.54x = 6,168,486.90
  5. Step 5: Solve for x
    x = 6,168,486.90/3,706.54
  6. Step 6: Final answer
    x = 1,664.22

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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.