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Finding the Fourth Proportional to 45,079, 62,211.90 and 25,207

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Solution

The fourth proportional to 45,079, 62,211.90 and 25,207 is: 34,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,079 : 62,211.90 = 25,207 : x
  2. Step 2: Convert to fraction form
    45,079/62,211.90 = 25,207/x
  3. Step 3: Cross multiply
    45,079x = 62,211.90 × 25,207
  4. Step 4: Simplify right side
    45,079x = 1,568,175,363.30
  5. Step 5: Solve for x
    x = 1,568,175,363.30/45,079
  6. Step 6: Final answer
    x = 34,787.27

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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.