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Finding the Fourth Proportional to 12,253.44, 18,372.06 and 4,458

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Solution

The fourth proportional to 12,253.44, 18,372.06 and 4,458 is: 6,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.44 : 18,372.06 = 4,458 : x
  2. Step 2: Convert to fraction form
    12,253.44/18,372.06 = 4,458/x
  3. Step 3: Cross multiply
    12,253.44x = 18,372.06 × 4,458
  4. Step 4: Simplify right side
    12,253.44x = 81,902,643.48
  5. Step 5: Solve for x
    x = 81,902,643.48/12,253.44
  6. Step 6: Final answer
    x = 6,684.05

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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.