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Finding the Fourth Proportional to 14,443.55, 21,661.02 and 6,123.44

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Solution

The fourth proportional to 14,443.55, 21,661.02 and 6,123.44 is: 9,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.55 : 21,661.02 = 6,123.44 : x
  2. Step 2: Convert to fraction form
    14,443.55/21,661.02 = 6,123.44/x
  3. Step 3: Cross multiply
    14,443.55x = 21,661.02 × 6,123.44
  4. Step 4: Simplify right side
    14,443.55x = 132,639,870.97
  5. Step 5: Solve for x
    x = 132,639,870.97/14,443.55
  6. Step 6: Final answer
    x = 9,183.33

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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.