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Finding the Fourth Proportional to 25,653, 38,480.94 and 7,186.44

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Solution

The fourth proportional to 25,653, 38,480.94 and 7,186.44 is: 10,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653 : 38,480.94 = 7,186.44 : x
  2. Step 2: Convert to fraction form
    25,653/38,480.94 = 7,186.44/x
  3. Step 3: Cross multiply
    25,653x = 38,480.94 × 7,186.44
  4. Step 4: Simplify right side
    25,653x = 276,540,966.45
  5. Step 5: Solve for x
    x = 276,540,966.45/25,653
  6. Step 6: Final answer
    x = 10,780.06

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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.