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Finding the Fourth Proportional to 52,974.52, 79,461.90 and 19,701.88

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Solution

The fourth proportional to 52,974.52, 79,461.90 and 19,701.88 is: 29,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,974.52 : 79,461.90 = 19,701.88 : x
  2. Step 2: Convert to fraction form
    52,974.52/79,461.90 = 19,701.88/x
  3. Step 3: Cross multiply
    52,974.52x = 79,461.90 × 19,701.88
  4. Step 4: Simplify right side
    52,974.52x = 1,565,548,818.37
  5. Step 5: Solve for x
    x = 1,565,548,818.37/52,974.52
  6. Step 6: Final answer
    x = 29,552.86

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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.