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Finding the Fourth Proportional to 64,761.60, 97,134.24 and 18,018.08

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Solution

The fourth proportional to 64,761.60, 97,134.24 and 18,018.08 is: 27,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.60 : 97,134.24 = 18,018.08 : x
  2. Step 2: Convert to fraction form
    64,761.60/97,134.24 = 18,018.08/x
  3. Step 3: Cross multiply
    64,761.60x = 97,134.24 × 18,018.08
  4. Step 4: Simplify right side
    64,761.60x = 1,750,172,507.06
  5. Step 5: Solve for x
    x = 1,750,172,507.06/64,761.60
  6. Step 6: Final answer
    x = 27,024.85

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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.