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Finding the Fourth Proportional to 61,879.39, 85,393.60 and 33,585.07

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Solution

The fourth proportional to 61,879.39, 85,393.60 and 33,585.07 is: 46,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.39 : 85,393.60 = 33,585.07 : x
  2. Step 2: Convert to fraction form
    61,879.39/85,393.60 = 33,585.07/x
  3. Step 3: Cross multiply
    61,879.39x = 85,393.60 × 33,585.07
  4. Step 4: Simplify right side
    61,879.39x = 2,867,949,606.58
  5. Step 5: Solve for x
    x = 2,867,949,606.58/61,879.39
  6. Step 6: Final answer
    x = 46,347.42

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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.