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Finding the Fourth Proportional to 53,112, 79,669.44 and 16,176

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Solution

The fourth proportional to 53,112, 79,669.44 and 16,176 is: 24,264.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112 : 79,669.44 = 16,176 : x
  2. Step 2: Convert to fraction form
    53,112/79,669.44 = 16,176/x
  3. Step 3: Cross multiply
    53,112x = 79,669.44 × 16,176
  4. Step 4: Simplify right side
    53,112x = 1,288,732,861.44
  5. Step 5: Solve for x
    x = 1,288,732,861.44/53,112
  6. Step 6: Final answer
    x = 24,264.44

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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.