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Finding the Fourth Proportional to 52,911.90, 79,398.84 and 19,654.98

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Solution

The fourth proportional to 52,911.90, 79,398.84 and 19,654.98 is: 29,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,911.90 : 79,398.84 = 19,654.98 : x
  2. Step 2: Convert to fraction form
    52,911.90/79,398.84 = 19,654.98/x
  3. Step 3: Cross multiply
    52,911.90x = 79,398.84 × 19,654.98
  4. Step 4: Simplify right side
    52,911.90x = 1,560,582,612.22
  5. Step 5: Solve for x
    x = 1,560,582,612.22/52,911.90
  6. Step 6: Final answer
    x = 29,493.98

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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.