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Finding the Fourth Proportional to 29,195.81, 40,242.89 and 22,811.26

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Solution

The fourth proportional to 29,195.81, 40,242.89 and 22,811.26 is: 31,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,195.81 : 40,242.89 = 22,811.26 : x
  2. Step 2: Convert to fraction form
    29,195.81/40,242.89 = 22,811.26/x
  3. Step 3: Cross multiply
    29,195.81x = 40,242.89 × 22,811.26
  4. Step 4: Simplify right side
    29,195.81x = 917,991,268.92
  5. Step 5: Solve for x
    x = 917,991,268.92/29,195.81
  6. Step 6: Final answer
    x = 31,442.57

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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.