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Finding the Fourth Proportional to 56,482.72, 84,664.97 and 19,029.85

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Solution

The fourth proportional to 56,482.72, 84,664.97 and 19,029.85 is: 28,524.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,482.72 : 84,664.97 = 19,029.85 : x
  2. Step 2: Convert to fraction form
    56,482.72/84,664.97 = 19,029.85/x
  3. Step 3: Cross multiply
    56,482.72x = 84,664.97 × 19,029.85
  4. Step 4: Simplify right side
    56,482.72x = 1,611,161,679.35
  5. Step 5: Solve for x
    x = 1,611,161,679.35/56,482.72
  6. Step 6: Final answer
    x = 28,524.86

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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.