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Finding the Fourth Proportional to 29,109, 40,176.90 and 18,496.56

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Solution

The fourth proportional to 29,109, 40,176.90 and 18,496.56 is: 25,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109 : 40,176.90 = 18,496.56 : x
  2. Step 2: Convert to fraction form
    29,109/40,176.90 = 18,496.56/x
  3. Step 3: Cross multiply
    29,109x = 40,176.90 × 18,496.56
  4. Step 4: Simplify right side
    29,109x = 743,134,441.46
  5. Step 5: Solve for x
    x = 743,134,441.46/29,109
  6. Step 6: Final answer
    x = 25,529.37

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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.