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Finding the Fourth Proportional to 29,110.48, 43,665.84 and 12,456.48

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Solution

The fourth proportional to 29,110.48, 43,665.84 and 12,456.48 is: 18,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,110.48 : 43,665.84 = 12,456.48 : x
  2. Step 2: Convert to fraction form
    29,110.48/43,665.84 = 12,456.48/x
  3. Step 3: Cross multiply
    29,110.48x = 43,665.84 × 12,456.48
  4. Step 4: Simplify right side
    29,110.48x = 543,922,662.64
  5. Step 5: Solve for x
    x = 543,922,662.64/29,110.48
  6. Step 6: Final answer
    x = 18,684.77

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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.