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Finding the Fourth Proportional to 62,205.90, 93,265.11 and 28,890.60

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Solution

The fourth proportional to 62,205.90, 93,265.11 and 28,890.60 is: 43,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,205.90 : 93,265.11 = 28,890.60 : x
  2. Step 2: Convert to fraction form
    62,205.90/93,265.11 = 28,890.60/x
  3. Step 3: Cross multiply
    62,205.90x = 93,265.11 × 28,890.60
  4. Step 4: Simplify right side
    62,205.90x = 2,694,484,986.97
  5. Step 5: Solve for x
    x = 2,694,484,986.97/62,205.90
  6. Step 6: Final answer
    x = 43,315.59

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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.