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Finding the Fourth Proportional to 25,573.51, 38,371.44 and 8,945.50

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Solution

The fourth proportional to 25,573.51, 38,371.44 and 8,945.50 is: 13,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,573.51 : 38,371.44 = 8,945.50 : x
  2. Step 2: Convert to fraction form
    25,573.51/38,371.44 = 8,945.50/x
  3. Step 3: Cross multiply
    25,573.51x = 38,371.44 × 8,945.50
  4. Step 4: Simplify right side
    25,573.51x = 343,251,716.52
  5. Step 5: Solve for x
    x = 343,251,716.52/25,573.51
  6. Step 6: Final answer
    x = 13,422.16

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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.