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Finding the Fourth Proportional to 64,857.24, 97,346.48 and 39,945.87

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Solution

The fourth proportional to 64,857.24, 97,346.48 and 39,945.87 is: 59,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,857.24 : 97,346.48 = 39,945.87 : x
  2. Step 2: Convert to fraction form
    64,857.24/97,346.48 = 39,945.87/x
  3. Step 3: Cross multiply
    64,857.24x = 97,346.48 × 39,945.87
  4. Step 4: Simplify right side
    64,857.24x = 3,888,589,635.31
  5. Step 5: Solve for x
    x = 3,888,589,635.31/64,857.24
  6. Step 6: Final answer
    x = 59,956.14

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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.