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Finding the Fourth Proportional to 61,744.32, 85,199 and 39,043.26

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Solution

The fourth proportional to 61,744.32, 85,199 and 39,043.26 is: 53,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,744.32 : 85,199 = 39,043.26 : x
  2. Step 2: Convert to fraction form
    61,744.32/85,199 = 39,043.26/x
  3. Step 3: Cross multiply
    61,744.32x = 85,199 × 39,043.26
  4. Step 4: Simplify right side
    61,744.32x = 3,326,446,708.74
  5. Step 5: Solve for x
    x = 3,326,446,708.74/61,744.32
  6. Step 6: Final answer
    x = 53,874.54

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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.