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Finding the Fourth Proportional to 65,127.80, 97,682.10 and 18,385.40

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Solution

The fourth proportional to 65,127.80, 97,682.10 and 18,385.40 is: 27,575.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,127.80 : 97,682.10 = 18,385.40 : x
  2. Step 2: Convert to fraction form
    65,127.80/97,682.10 = 18,385.40/x
  3. Step 3: Cross multiply
    65,127.80x = 97,682.10 × 18,385.40
  4. Step 4: Simplify right side
    65,127.80x = 1,795,924,481.34
  5. Step 5: Solve for x
    x = 1,795,924,481.34/65,127.80
  6. Step 6: Final answer
    x = 27,575.39

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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.