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Finding the Fourth Proportional to 53,328, 80,004.96 and 16,392

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Solution

The fourth proportional to 53,328, 80,004.96 and 16,392 is: 24,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,328 : 80,004.96 = 16,392 : x
  2. Step 2: Convert to fraction form
    53,328/80,004.96 = 16,392/x
  3. Step 3: Cross multiply
    53,328x = 80,004.96 × 16,392
  4. Step 4: Simplify right side
    53,328x = 1,311,441,304.32
  5. Step 5: Solve for x
    x = 1,311,441,304.32/53,328
  6. Step 6: Final answer
    x = 24,591.98

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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.