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Finding the Fourth Proportional to 14,919.68, 22,382.09 and 7,423.74

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Solution

The fourth proportional to 14,919.68, 22,382.09 and 7,423.74 is: 11,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.68 : 22,382.09 = 7,423.74 : x
  2. Step 2: Convert to fraction form
    14,919.68/22,382.09 = 7,423.74/x
  3. Step 3: Cross multiply
    14,919.68x = 22,382.09 × 7,423.74
  4. Step 4: Simplify right side
    14,919.68x = 166,158,779.70
  5. Step 5: Solve for x
    x = 166,158,779.70/14,919.68
  6. Step 6: Final answer
    x = 11,136.89

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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.