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Finding the Fourth Proportional to 18,457.74, 27,630.11 and 14,914.80

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Solution

The fourth proportional to 18,457.74, 27,630.11 and 14,914.80 is: 22,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.74 : 27,630.11 = 14,914.80 : x
  2. Step 2: Convert to fraction form
    18,457.74/27,630.11 = 14,914.80/x
  3. Step 3: Cross multiply
    18,457.74x = 27,630.11 × 14,914.80
  4. Step 4: Simplify right side
    18,457.74x = 412,097,601.92
  5. Step 5: Solve for x
    x = 412,097,601.92/18,457.74
  6. Step 6: Final answer
    x = 22,326.55

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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.