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Finding the Fourth Proportional to 64,728.14, 97,129.95 and 27,285.92

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Solution

The fourth proportional to 64,728.14, 97,129.95 and 27,285.92 is: 40,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,728.14 : 97,129.95 = 27,285.92 : x
  2. Step 2: Convert to fraction form
    64,728.14/97,129.95 = 27,285.92/x
  3. Step 3: Cross multiply
    64,728.14x = 97,129.95 × 27,285.92
  4. Step 4: Simplify right side
    64,728.14x = 2,650,280,045.30
  5. Step 5: Solve for x
    x = 2,650,280,045.30/64,728.14
  6. Step 6: Final answer
    x = 40,944.79

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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.