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Finding the Fourth Proportional to 25,344.71, 37,961.68 and 12,843.28

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Solution

The fourth proportional to 25,344.71, 37,961.68 and 12,843.28 is: 19,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,344.71 : 37,961.68 = 12,843.28 : x
  2. Step 2: Convert to fraction form
    25,344.71/37,961.68 = 12,843.28/x
  3. Step 3: Cross multiply
    25,344.71x = 37,961.68 × 12,843.28
  4. Step 4: Simplify right side
    25,344.71x = 487,552,485.51
  5. Step 5: Solve for x
    x = 487,552,485.51/25,344.71
  6. Step 6: Final answer
    x = 19,236.85

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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.