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Finding the Fourth Proportional to 22,351.64, 30,851.47 and 12,796.88

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Solution

The fourth proportional to 22,351.64, 30,851.47 and 12,796.88 is: 17,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.64 : 30,851.47 = 12,796.88 : x
  2. Step 2: Convert to fraction form
    22,351.64/30,851.47 = 12,796.88/x
  3. Step 3: Cross multiply
    22,351.64x = 30,851.47 × 12,796.88
  4. Step 4: Simplify right side
    22,351.64x = 394,802,559.41
  5. Step 5: Solve for x
    x = 394,802,559.41/22,351.64
  6. Step 6: Final answer
    x = 17,663.25

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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.