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Finding the Fourth Proportional to 19,839.63, 29,773.85 and 7,361.45

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Solution

The fourth proportional to 19,839.63, 29,773.85 and 7,361.45 is: 11,047.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.63 : 29,773.85 = 7,361.45 : x
  2. Step 2: Convert to fraction form
    19,839.63/29,773.85 = 7,361.45/x
  3. Step 3: Cross multiply
    19,839.63x = 29,773.85 × 7,361.45
  4. Step 4: Simplify right side
    19,839.63x = 219,178,634.06
  5. Step 5: Solve for x
    x = 219,178,634.06/19,839.63
  6. Step 6: Final answer
    x = 11,047.51

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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.