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Finding the Fourth Proportional to 41,989.50, 62,990.73 and 15,697.98

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Solution

The fourth proportional to 41,989.50, 62,990.73 and 15,697.98 is: 23,549.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,989.50 : 62,990.73 = 15,697.98 : x
  2. Step 2: Convert to fraction form
    41,989.50/62,990.73 = 15,697.98/x
  3. Step 3: Cross multiply
    41,989.50x = 62,990.73 × 15,697.98
  4. Step 4: Simplify right side
    41,989.50x = 988,827,219.73
  5. Step 5: Solve for x
    x = 988,827,219.73/41,989.50
  6. Step 6: Final answer
    x = 23,549.39

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1.5x scale

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.