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Finding the Fourth Proportional to 32,615.73, 48,923.60 and 7,991.73

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Solution

The fourth proportional to 32,615.73, 48,923.60 and 7,991.73 is: 11,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,615.73 : 48,923.60 = 7,991.73 : x
  2. Step 2: Convert to fraction form
    32,615.73/48,923.60 = 7,991.73/x
  3. Step 3: Cross multiply
    32,615.73x = 48,923.60 × 7,991.73
  4. Step 4: Simplify right side
    32,615.73x = 390,984,161.87
  5. Step 5: Solve for x
    x = 390,984,161.87/32,615.73
  6. Step 6: Final answer
    x = 11,987.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.