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Finding the Fourth Proportional to 61,549.80, 84,938.72 and 33,255.48

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Solution

The fourth proportional to 61,549.80, 84,938.72 and 33,255.48 is: 45,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,549.80 : 84,938.72 = 33,255.48 : x
  2. Step 2: Convert to fraction form
    61,549.80/84,938.72 = 33,255.48/x
  3. Step 3: Cross multiply
    61,549.80x = 84,938.72 × 33,255.48
  4. Step 4: Simplify right side
    61,549.80x = 2,824,677,904.19
  5. Step 5: Solve for x
    x = 2,824,677,904.19/61,549.80
  6. Step 6: Final answer
    x = 45,892.56

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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.