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Finding the Fourth Proportional to 52,806.42, 79,209.68 and 13,363.54

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Solution

The fourth proportional to 52,806.42, 79,209.68 and 13,363.54 is: 20,045.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806.42 : 79,209.68 = 13,363.54 : x
  2. Step 2: Convert to fraction form
    52,806.42/79,209.68 = 13,363.54/x
  3. Step 3: Cross multiply
    52,806.42x = 79,209.68 × 13,363.54
  4. Step 4: Simplify right side
    52,806.42x = 1,058,521,727.07
  5. Step 5: Solve for x
    x = 1,058,521,727.07/52,806.42
  6. Step 6: Final answer
    x = 20,045.32

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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.