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Finding the Fourth Proportional to 37,507.92, 51,760.80 and 20,740.92

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Solution

The fourth proportional to 37,507.92, 51,760.80 and 20,740.92 is: 28,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,507.92 : 51,760.80 = 20,740.92 : x
  2. Step 2: Convert to fraction form
    37,507.92/51,760.80 = 20,740.92/x
  3. Step 3: Cross multiply
    37,507.92x = 51,760.80 × 20,740.92
  4. Step 4: Simplify right side
    37,507.92x = 1,073,566,611.94
  5. Step 5: Solve for x
    x = 1,073,566,611.94/37,507.92
  6. Step 6: Final answer
    x = 28,622.40

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Similar ratio
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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.