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Finding the Fourth Proportional to 64,173.96, 88,560 and 35,879.65

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Solution

The fourth proportional to 64,173.96, 88,560 and 35,879.65 is: 49,513.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,173.96 : 88,560 = 35,879.65 : x
  2. Step 2: Convert to fraction form
    64,173.96/88,560 = 35,879.65/x
  3. Step 3: Cross multiply
    64,173.96x = 88,560 × 35,879.65
  4. Step 4: Simplify right side
    64,173.96x = 3,177,501,804
  5. Step 5: Solve for x
    x = 3,177,501,804/64,173.96
  6. Step 6: Final answer
    x = 49,513.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.