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Finding the Fourth Proportional to 25,301.76, 37,940.47 and 11,963.64

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Solution

The fourth proportional to 25,301.76, 37,940.47 and 11,963.64 is: 17,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,301.76 : 37,940.47 = 11,963.64 : x
  2. Step 2: Convert to fraction form
    25,301.76/37,940.47 = 11,963.64/x
  3. Step 3: Cross multiply
    25,301.76x = 37,940.47 × 11,963.64
  4. Step 4: Simplify right side
    25,301.76x = 453,906,124.51
  5. Step 5: Solve for x
    x = 453,906,124.51/25,301.76
  6. Step 6: Final answer
    x = 17,939.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.