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Finding the Fourth Proportional to 56,425.75, 84,643.76 and 14,872.75

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Solution

The fourth proportional to 56,425.75, 84,643.76 and 14,872.75 is: 22,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,425.75 : 84,643.76 = 14,872.75 : x
  2. Step 2: Convert to fraction form
    56,425.75/84,643.76 = 14,872.75/x
  3. Step 3: Cross multiply
    56,425.75x = 84,643.76 × 14,872.75
  4. Step 4: Simplify right side
    56,425.75x = 1,258,885,481.54
  5. Step 5: Solve for x
    x = 1,258,885,481.54/56,425.75
  6. Step 6: Final answer
    x = 22,310.48

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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.