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Finding the Fourth Proportional to 64,606.32, 89,148.97 and 35,918.78

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Solution

The fourth proportional to 64,606.32, 89,148.97 and 35,918.78 is: 49,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,606.32 : 89,148.97 = 35,918.78 : x
  2. Step 2: Convert to fraction form
    64,606.32/89,148.97 = 35,918.78/x
  3. Step 3: Cross multiply
    64,606.32x = 89,148.97 × 35,918.78
  4. Step 4: Simplify right side
    64,606.32x = 3,202,122,291.67
  5. Step 5: Solve for x
    x = 3,202,122,291.67/64,606.32
  6. Step 6: Final answer
    x = 49,563.61

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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.