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Finding the Fourth Proportional to 62,708.91, 94,072.20 and 18,339

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Solution

The fourth proportional to 62,708.91, 94,072.20 and 18,339 is: 27,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,708.91 : 94,072.20 = 18,339 : x
  2. Step 2: Convert to fraction form
    62,708.91/94,072.20 = 18,339/x
  3. Step 3: Cross multiply
    62,708.91x = 94,072.20 × 18,339
  4. Step 4: Simplify right side
    62,708.91x = 1,725,190,075.80
  5. Step 5: Solve for x
    x = 1,725,190,075.80/62,708.91
  6. Step 6: Final answer
    x = 27,511.08

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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.