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Finding the Fourth Proportional to 61,873.70, 85,385.20 and 33,579.38

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Solution

The fourth proportional to 61,873.70, 85,385.20 and 33,579.38 is: 46,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,873.70 : 85,385.20 = 33,579.38 : x
  2. Step 2: Convert to fraction form
    61,873.70/85,385.20 = 33,579.38/x
  3. Step 3: Cross multiply
    61,873.70x = 85,385.20 × 33,579.38
  4. Step 4: Simplify right side
    61,873.70x = 2,867,182,077.18
  5. Step 5: Solve for x
    x = 2,867,182,077.18/61,873.70
  6. Step 6: Final answer
    x = 46,339.27

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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.