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Finding the Fourth Proportional to 61,879.76, 85,394.12 and 33,585.44

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Solution

The fourth proportional to 61,879.76, 85,394.12 and 33,585.44 is: 46,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.76 : 85,394.12 = 33,585.44 : x
  2. Step 2: Convert to fraction form
    61,879.76/85,394.12 = 33,585.44/x
  3. Step 3: Cross multiply
    61,879.76x = 85,394.12 × 33,585.44
  4. Step 4: Simplify right side
    61,879.76x = 2,867,999,093.61
  5. Step 5: Solve for x
    x = 2,867,999,093.61/61,879.76
  6. Step 6: Final answer
    x = 46,347.93

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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.