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Finding the Fourth Proportional to 61,313.72, 84,636.05 and 35,828.36

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Solution

The fourth proportional to 61,313.72, 84,636.05 and 35,828.36 is: 49,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,313.72 : 84,636.05 = 35,828.36 : x
  2. Step 2: Convert to fraction form
    61,313.72/84,636.05 = 35,828.36/x
  3. Step 3: Cross multiply
    61,313.72x = 84,636.05 × 35,828.36
  4. Step 4: Simplify right side
    61,313.72x = 3,032,370,266.06
  5. Step 5: Solve for x
    x = 3,032,370,266.06/61,313.72
  6. Step 6: Final answer
    x = 49,456.64

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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.