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Finding the Fourth Proportional to 23,644.74, 32,629.28 and 12,889.71

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Solution

The fourth proportional to 23,644.74, 32,629.28 and 12,889.71 is: 17,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,644.74 : 32,629.28 = 12,889.71 : x
  2. Step 2: Convert to fraction form
    23,644.74/32,629.28 = 12,889.71/x
  3. Step 3: Cross multiply
    23,644.74x = 32,629.28 × 12,889.71
  4. Step 4: Simplify right side
    23,644.74x = 420,581,956.71
  5. Step 5: Solve for x
    x = 420,581,956.71/23,644.74
  6. Step 6: Final answer
    x = 17,787.55

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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.