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Finding the Fourth Proportional to 29,695.34, 40,968.27 and 18,361.22

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Solution

The fourth proportional to 29,695.34, 40,968.27 and 18,361.22 is: 25,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,695.34 : 40,968.27 = 18,361.22 : x
  2. Step 2: Convert to fraction form
    29,695.34/40,968.27 = 18,361.22/x
  3. Step 3: Cross multiply
    29,695.34x = 40,968.27 × 18,361.22
  4. Step 4: Simplify right side
    29,695.34x = 752,227,213.65
  5. Step 5: Solve for x
    x = 752,227,213.65/29,695.34
  6. Step 6: Final answer
    x = 25,331.49

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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.