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Finding the Fourth Proportional to 53,172, 79,758 and 16,236

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Solution

The fourth proportional to 53,172, 79,758 and 16,236 is: 24,354

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,172 : 79,758 = 16,236 : x
  2. Step 2: Convert to fraction form
    53,172/79,758 = 16,236/x
  3. Step 3: Cross multiply
    53,172x = 79,758 × 16,236
  4. Step 4: Simplify right side
    53,172x = 1,294,950,888
  5. Step 5: Solve for x
    x = 1,294,950,888/53,172
  6. Step 6: Final answer
    x = 24,354

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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.