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Finding the Fourth Proportional to 62,515, 93,740.60 and 20,367.98

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Solution

The fourth proportional to 62,515, 93,740.60 and 20,367.98 is: 30,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,515 : 93,740.60 = 20,367.98 : x
  2. Step 2: Convert to fraction form
    62,515/93,740.60 = 20,367.98/x
  3. Step 3: Cross multiply
    62,515x = 93,740.60 × 20,367.98
  4. Step 4: Simplify right side
    62,515x = 1,909,306,665.99
  5. Step 5: Solve for x
    x = 1,909,306,665.99/62,515
  6. Step 6: Final answer
    x = 30,541.58

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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.