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Finding the Fourth Proportional to 18,591.21, 25,648.47 and 10,629.27

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Solution

The fourth proportional to 18,591.21, 25,648.47 and 10,629.27 is: 14,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.21 : 25,648.47 = 10,629.27 : x
  2. Step 2: Convert to fraction form
    18,591.21/25,648.47 = 10,629.27/x
  3. Step 3: Cross multiply
    18,591.21x = 25,648.47 × 10,629.27
  4. Step 4: Simplify right side
    18,591.21x = 272,624,512.72
  5. Step 5: Solve for x
    x = 272,624,512.72/18,591.21
  6. Step 6: Final answer
    x = 14,664.16

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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.