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Finding the Fourth Proportional to 52,672, 79,008 and 15,736

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Solution

The fourth proportional to 52,672, 79,008 and 15,736 is: 23,604

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,672 : 79,008 = 15,736 : x
  2. Step 2: Convert to fraction form
    52,672/79,008 = 15,736/x
  3. Step 3: Cross multiply
    52,672x = 79,008 × 15,736
  4. Step 4: Simplify right side
    52,672x = 1,243,269,888
  5. Step 5: Solve for x
    x = 1,243,269,888/52,672
  6. Step 6: Final answer
    x = 23,604

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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.