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Finding the Fourth Proportional to 15,867.48, 23,754.48 and 11,725.98

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Solution

The fourth proportional to 15,867.48, 23,754.48 and 11,725.98 is: 17,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.48 : 23,754.48 = 11,725.98 : x
  2. Step 2: Convert to fraction form
    15,867.48/23,754.48 = 11,725.98/x
  3. Step 3: Cross multiply
    15,867.48x = 23,754.48 × 11,725.98
  4. Step 4: Simplify right side
    15,867.48x = 278,544,557.39
  5. Step 5: Solve for x
    x = 278,544,557.39/15,867.48
  6. Step 6: Final answer
    x = 17,554.43

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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.