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Finding the Fourth Proportional to 35,993.86, 53,990.78 and 19,330.96

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Solution

The fourth proportional to 35,993.86, 53,990.78 and 19,330.96 is: 28,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,993.86 : 53,990.78 = 19,330.96 : x
  2. Step 2: Convert to fraction form
    35,993.86/53,990.78 = 19,330.96/x
  3. Step 3: Cross multiply
    35,993.86x = 53,990.78 × 19,330.96
  4. Step 4: Simplify right side
    35,993.86x = 1,043,693,608.55
  5. Step 5: Solve for x
    x = 1,043,693,608.55/35,993.86
  6. Step 6: Final answer
    x = 28,996.43

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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.