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Finding the Fourth Proportional to 14,479.83, 21,679.77 and 7,444.65

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Solution

The fourth proportional to 14,479.83, 21,679.77 and 7,444.65 is: 11,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.83 : 21,679.77 = 7,444.65 : x
  2. Step 2: Convert to fraction form
    14,479.83/21,679.77 = 7,444.65/x
  3. Step 3: Cross multiply
    14,479.83x = 21,679.77 × 7,444.65
  4. Step 4: Simplify right side
    14,479.83x = 161,398,299.73
  5. Step 5: Solve for x
    x = 161,398,299.73/14,479.83
  6. Step 6: Final answer
    x = 11,146.42

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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.