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Finding the Fourth Proportional to 52,297.44, 72,169.92 and 38,928.48

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Solution

The fourth proportional to 52,297.44, 72,169.92 and 38,928.48 is: 53,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,297.44 : 72,169.92 = 38,928.48 : x
  2. Step 2: Convert to fraction form
    52,297.44/72,169.92 = 38,928.48/x
  3. Step 3: Cross multiply
    52,297.44x = 72,169.92 × 38,928.48
  4. Step 4: Simplify right side
    52,297.44x = 2,809,465,287.32
  5. Step 5: Solve for x
    x = 2,809,465,287.32/52,297.44
  6. Step 6: Final answer
    x = 53,720.90

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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.