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Finding the Fourth Proportional to 6,211.64, 8,572.08 and 3,559

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Solution

The fourth proportional to 6,211.64, 8,572.08 and 3,559 is: 4,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.64 : 8,572.08 = 3,559 : x
  2. Step 2: Convert to fraction form
    6,211.64/8,572.08 = 3,559/x
  3. Step 3: Cross multiply
    6,211.64x = 8,572.08 × 3,559
  4. Step 4: Simplify right side
    6,211.64x = 30,508,032.72
  5. Step 5: Solve for x
    x = 30,508,032.72/6,211.64
  6. Step 6: Final answer
    x = 4,911.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.