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Finding the Fourth Proportional to 18,576.71, 25,632.07 and 11,019.73

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Solution

The fourth proportional to 18,576.71, 25,632.07 and 11,019.73 is: 15,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.71 : 25,632.07 = 11,019.73 : x
  2. Step 2: Convert to fraction form
    18,576.71/25,632.07 = 11,019.73/x
  3. Step 3: Cross multiply
    18,576.71x = 25,632.07 × 11,019.73
  4. Step 4: Simplify right side
    18,576.71x = 282,458,490.74
  5. Step 5: Solve for x
    x = 282,458,490.74/18,576.71
  6. Step 6: Final answer
    x = 15,204.98

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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.