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Finding the Fourth Proportional to 64,764.60, 97,128.21 and 27,333.06

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Solution

The fourth proportional to 64,764.60, 97,128.21 and 27,333.06 is: 40,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,764.60 : 97,128.21 = 27,333.06 : x
  2. Step 2: Convert to fraction form
    64,764.60/97,128.21 = 27,333.06/x
  3. Step 3: Cross multiply
    64,764.60x = 97,128.21 × 27,333.06
  4. Step 4: Simplify right side
    64,764.60x = 2,654,811,191.62
  5. Step 5: Solve for x
    x = 2,654,811,191.62/64,764.60
  6. Step 6: Final answer
    x = 40,991.70

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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.