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Finding the Fourth Proportional to 12,192.66, 18,313.29 and 11,504.94

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Solution

The fourth proportional to 12,192.66, 18,313.29 and 11,504.94 is: 17,280.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.66 : 18,313.29 = 11,504.94 : x
  2. Step 2: Convert to fraction form
    12,192.66/18,313.29 = 11,504.94/x
  3. Step 3: Cross multiply
    12,192.66x = 18,313.29 × 11,504.94
  4. Step 4: Simplify right side
    12,192.66x = 210,693,302.65
  5. Step 5: Solve for x
    x = 210,693,302.65/12,192.66
  6. Step 6: Final answer
    x = 17,280.34

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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.