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Finding the Fourth Proportional to 16,605.40, 24,912.90 and 4,918.84

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Solution

The fourth proportional to 16,605.40, 24,912.90 and 4,918.84 is: 7,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,605.40 : 24,912.90 = 4,918.84 : x
  2. Step 2: Convert to fraction form
    16,605.40/24,912.90 = 4,918.84/x
  3. Step 3: Cross multiply
    16,605.40x = 24,912.90 × 4,918.84
  4. Step 4: Simplify right side
    16,605.40x = 122,542,569.04
  5. Step 5: Solve for x
    x = 122,542,569.04/16,605.40
  6. Step 6: Final answer
    x = 7,379.68

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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.