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Finding the Fourth Proportional to 56,251.22, 84,388.98 and 16,811.51

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Solution

The fourth proportional to 56,251.22, 84,388.98 and 16,811.51 is: 25,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,251.22 : 84,388.98 = 16,811.51 : x
  2. Step 2: Convert to fraction form
    56,251.22/84,388.98 = 16,811.51/x
  3. Step 3: Cross multiply
    56,251.22x = 84,388.98 × 16,811.51
  4. Step 4: Simplify right side
    56,251.22x = 1,418,706,181.16
  5. Step 5: Solve for x
    x = 1,418,706,181.16/56,251.22
  6. Step 6: Final answer
    x = 25,220.90

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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.