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Finding the Fourth Proportional to 18,462.58, 25,469.64 and 10,903.87

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Solution

The fourth proportional to 18,462.58, 25,469.64 and 10,903.87 is: 15,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.58 : 25,469.64 = 10,903.87 : x
  2. Step 2: Convert to fraction form
    18,462.58/25,469.64 = 10,903.87/x
  3. Step 3: Cross multiply
    18,462.58x = 25,469.64 × 10,903.87
  4. Step 4: Simplify right side
    18,462.58x = 277,717,532.08
  5. Step 5: Solve for x
    x = 277,717,532.08/18,462.58
  6. Step 6: Final answer
    x = 15,042.18

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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.