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Finding the Fourth Proportional to 6,573.94, 9,072.70 and 3,921.35

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Solution

The fourth proportional to 6,573.94, 9,072.70 and 3,921.35 is: 5,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,573.94 : 9,072.70 = 3,921.35 : x
  2. Step 2: Convert to fraction form
    6,573.94/9,072.70 = 3,921.35/x
  3. Step 3: Cross multiply
    6,573.94x = 9,072.70 × 3,921.35
  4. Step 4: Simplify right side
    6,573.94x = 35,577,227.19
  5. Step 5: Solve for x
    x = 35,577,227.19/6,573.94
  6. Step 6: Final answer
    x = 5,411.86

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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.