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Finding the Fourth Proportional to 5,722.36, 8,585.36 and 4,490.34

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Solution

The fourth proportional to 5,722.36, 8,585.36 and 4,490.34 is: 6,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.36 : 8,585.36 = 4,490.34 : x
  2. Step 2: Convert to fraction form
    5,722.36/8,585.36 = 4,490.34/x
  3. Step 3: Cross multiply
    5,722.36x = 8,585.36 × 4,490.34
  4. Step 4: Simplify right side
    5,722.36x = 38,551,185.42
  5. Step 5: Solve for x
    x = 38,551,185.42/5,722.36
  6. Step 6: Final answer
    x = 6,736.94

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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.