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Finding the Fourth Proportional to 19,672.91, 27,141.95 and 12,013.39

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Solution

The fourth proportional to 19,672.91, 27,141.95 and 12,013.39 is: 16,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.91 : 27,141.95 = 12,013.39 : x
  2. Step 2: Convert to fraction form
    19,672.91/27,141.95 = 12,013.39/x
  3. Step 3: Cross multiply
    19,672.91x = 27,141.95 × 12,013.39
  4. Step 4: Simplify right side
    19,672.91x = 326,066,800.68
  5. Step 5: Solve for x
    x = 326,066,800.68/19,672.91
  6. Step 6: Final answer
    x = 16,574.41

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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.