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Finding the Fourth Proportional to 18,124.52, 25,006.71 and 11,751.38

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Solution

The fourth proportional to 18,124.52, 25,006.71 and 11,751.38 is: 16,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.52 : 25,006.71 = 11,751.38 : x
  2. Step 2: Convert to fraction form
    18,124.52/25,006.71 = 11,751.38/x
  3. Step 3: Cross multiply
    18,124.52x = 25,006.71 × 11,751.38
  4. Step 4: Simplify right side
    18,124.52x = 293,863,351.76
  5. Step 5: Solve for x
    x = 293,863,351.76/18,124.52
  6. Step 6: Final answer
    x = 16,213.58

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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.