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Finding the Fourth Proportional to 52,839.45, 79,269.53 and 19,559.79

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Solution

The fourth proportional to 52,839.45, 79,269.53 and 19,559.79 is: 29,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,839.45 : 79,269.53 = 19,559.79 : x
  2. Step 2: Convert to fraction form
    52,839.45/79,269.53 = 19,559.79/x
  3. Step 3: Cross multiply
    52,839.45x = 79,269.53 × 19,559.79
  4. Step 4: Simplify right side
    52,839.45x = 1,550,495,360.20
  5. Step 5: Solve for x
    x = 1,550,495,360.20/52,839.45
  6. Step 6: Final answer
    x = 29,343.52

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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.