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Finding the Fourth Proportional to 64,828.26, 89,462.87 and 35,020.26

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Solution

The fourth proportional to 64,828.26, 89,462.87 and 35,020.26 is: 48,327.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,828.26 : 89,462.87 = 35,020.26 : x
  2. Step 2: Convert to fraction form
    64,828.26/89,462.87 = 35,020.26/x
  3. Step 3: Cross multiply
    64,828.26x = 89,462.87 × 35,020.26
  4. Step 4: Simplify right side
    64,828.26x = 3,133,012,792.64
  5. Step 5: Solve for x
    x = 3,133,012,792.64/64,828.26
  6. Step 6: Final answer
    x = 48,327.89

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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.