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Finding the Fourth Proportional to 16,479.12, 22,740.96 and 9,027.12

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Solution

The fourth proportional to 16,479.12, 22,740.96 and 9,027.12 is: 12,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,479.12 : 22,740.96 = 9,027.12 : x
  2. Step 2: Convert to fraction form
    16,479.12/22,740.96 = 9,027.12/x
  3. Step 3: Cross multiply
    16,479.12x = 22,740.96 × 9,027.12
  4. Step 4: Simplify right side
    16,479.12x = 205,285,374.84
  5. Step 5: Solve for x
    x = 205,285,374.84/16,479.12
  6. Step 6: Final answer
    x = 12,457.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.