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Finding the Fourth Proportional to 63,840.50, 95,760.75 and 20,064.50

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Solution

The fourth proportional to 63,840.50, 95,760.75 and 20,064.50 is: 30,096.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,840.50 : 95,760.75 = 20,064.50 : x
  2. Step 2: Convert to fraction form
    63,840.50/95,760.75 = 20,064.50/x
  3. Step 3: Cross multiply
    63,840.50x = 95,760.75 × 20,064.50
  4. Step 4: Simplify right side
    63,840.50x = 1,921,391,568.38
  5. Step 5: Solve for x
    x = 1,921,391,568.38/63,840.50
  6. Step 6: Final answer
    x = 30,096.75

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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.