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Finding the Fourth Proportional to 31,361.27, 43,264.01 and 20,024.99

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Solution

The fourth proportional to 31,361.27, 43,264.01 and 20,024.99 is: 27,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.27 : 43,264.01 = 20,024.99 : x
  2. Step 2: Convert to fraction form
    31,361.27/43,264.01 = 20,024.99/x
  3. Step 3: Cross multiply
    31,361.27x = 43,264.01 × 20,024.99
  4. Step 4: Simplify right side
    31,361.27x = 866,361,051.16
  5. Step 5: Solve for x
    x = 866,361,051.16/31,361.27
  6. Step 6: Final answer
    x = 27,625.19

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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.