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Finding the Fourth Proportional to 61,693.79, 85,137.38 and 33,399.47

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Solution

The fourth proportional to 61,693.79, 85,137.38 and 33,399.47 is: 46,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.79 : 85,137.38 = 33,399.47 : x
  2. Step 2: Convert to fraction form
    61,693.79/85,137.38 = 33,399.47/x
  3. Step 3: Cross multiply
    61,693.79x = 85,137.38 × 33,399.47
  4. Step 4: Simplify right side
    61,693.79x = 2,843,543,540.28
  5. Step 5: Solve for x
    x = 2,843,543,540.28/61,693.79
  6. Step 6: Final answer
    x = 46,091.25

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1.5x scale

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.