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Finding the Fourth Proportional to 61,921.36, 85,451.68 and 33,626.40

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Solution

The fourth proportional to 61,921.36, 85,451.68 and 33,626.40 is: 46,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.36 : 85,451.68 = 33,626.40 : x
  2. Step 2: Convert to fraction form
    61,921.36/85,451.68 = 33,626.40/x
  3. Step 3: Cross multiply
    61,921.36x = 85,451.68 × 33,626.40
  4. Step 4: Simplify right side
    61,921.36x = 2,873,432,372.35
  5. Step 5: Solve for x
    x = 2,873,432,372.35/61,921.36
  6. Step 6: Final answer
    x = 46,404.54

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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.