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Finding the Fourth Proportional to 52,991.20, 79,544.40 and 29,663.20

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Solution

The fourth proportional to 52,991.20, 79,544.40 and 29,663.20 is: 44,527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,991.20 : 79,544.40 = 29,663.20 : x
  2. Step 2: Convert to fraction form
    52,991.20/79,544.40 = 29,663.20/x
  3. Step 3: Cross multiply
    52,991.20x = 79,544.40 × 29,663.20
  4. Step 4: Simplify right side
    52,991.20x = 2,359,541,446.08
  5. Step 5: Solve for x
    x = 2,359,541,446.08/52,991.20
  6. Step 6: Final answer
    x = 44,527.04

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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.