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Finding the Fourth Proportional to 61,960.72, 85,506.31 and 33,666.41

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Solution

The fourth proportional to 61,960.72, 85,506.31 and 33,666.41 is: 46,459.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,960.72 : 85,506.31 = 33,666.41 : x
  2. Step 2: Convert to fraction form
    61,960.72/85,506.31 = 33,666.41/x
  3. Step 3: Cross multiply
    61,960.72x = 85,506.31 × 33,666.41
  4. Step 4: Simplify right side
    61,960.72x = 2,878,690,104.60
  5. Step 5: Solve for x
    x = 2,878,690,104.60/61,960.72
  6. Step 6: Final answer
    x = 46,459.92

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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.