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Finding the Fourth Proportional to 61,920.42, 85,449.42 and 33,626.31

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Solution

The fourth proportional to 61,920.42, 85,449.42 and 33,626.31 is: 46,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.42 : 85,449.42 = 33,626.31 : x
  2. Step 2: Convert to fraction form
    61,920.42/85,449.42 = 33,626.31/x
  3. Step 3: Cross multiply
    61,920.42x = 85,449.42 × 33,626.31
  4. Step 4: Simplify right side
    61,920.42x = 2,873,348,258.99
  5. Step 5: Solve for x
    x = 2,873,348,258.99/61,920.42
  6. Step 6: Final answer
    x = 46,403.89

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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.