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Finding the Fourth Proportional to 52,719.58, 79,079.52 and 19,425.22

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Solution

The fourth proportional to 52,719.58, 79,079.52 and 19,425.22 is: 29,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,719.58 : 79,079.52 = 19,425.22 : x
  2. Step 2: Convert to fraction form
    52,719.58/79,079.52 = 19,425.22/x
  3. Step 3: Cross multiply
    52,719.58x = 79,079.52 × 19,425.22
  4. Step 4: Simplify right side
    52,719.58x = 1,536,137,073.49
  5. Step 5: Solve for x
    x = 1,536,137,073.49/52,719.58
  6. Step 6: Final answer
    x = 29,137.89

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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.