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Finding the Fourth Proportional to 52,359.81, 78,509.96 and 35,739.96

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Solution

The fourth proportional to 52,359.81, 78,509.96 and 35,739.96 is: 53,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,359.81 : 78,509.96 = 35,739.96 : x
  2. Step 2: Convert to fraction form
    52,359.81/78,509.96 = 35,739.96/x
  3. Step 3: Cross multiply
    52,359.81x = 78,509.96 × 35,739.96
  4. Step 4: Simplify right side
    52,359.81x = 2,805,942,490.91
  5. Step 5: Solve for x
    x = 2,805,942,490.91/52,359.81
  6. Step 6: Final answer
    x = 53,589.63

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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.