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Finding the Fourth Proportional to 12,482.64, 18,725.04 and 3,717.54

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Solution

The fourth proportional to 12,482.64, 18,725.04 and 3,717.54 is: 5,576.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.64 : 18,725.04 = 3,717.54 : x
  2. Step 2: Convert to fraction form
    12,482.64/18,725.04 = 3,717.54/x
  3. Step 3: Cross multiply
    12,482.64x = 18,725.04 × 3,717.54
  4. Step 4: Simplify right side
    12,482.64x = 69,611,085.20
  5. Step 5: Solve for x
    x = 69,611,085.20/12,482.64
  6. Step 6: Final answer
    x = 5,576.63

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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.