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Finding the Fourth Proportional to 52,908.88, 79,367.98 and 19,629.30

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Solution

The fourth proportional to 52,908.88, 79,367.98 and 19,629.30 is: 29,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,908.88 : 79,367.98 = 19,629.30 : x
  2. Step 2: Convert to fraction form
    52,908.88/79,367.98 = 19,629.30/x
  3. Step 3: Cross multiply
    52,908.88x = 79,367.98 × 19,629.30
  4. Step 4: Simplify right side
    52,908.88x = 1,557,937,889.81
  5. Step 5: Solve for x
    x = 1,557,937,889.81/52,908.88
  6. Step 6: Final answer
    x = 29,445.68

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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.