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Finding the Fourth Proportional to 57,096.50, 85,650.50 and 19,651.65

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Solution

The fourth proportional to 57,096.50, 85,650.50 and 19,651.65 is: 29,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,096.50 : 85,650.50 = 19,651.65 : x
  2. Step 2: Convert to fraction form
    57,096.50/85,650.50 = 19,651.65/x
  3. Step 3: Cross multiply
    57,096.50x = 85,650.50 × 19,651.65
  4. Step 4: Simplify right side
    57,096.50x = 1,683,173,121.81
  5. Step 5: Solve for x
    x = 1,683,173,121.81/57,096.50
  6. Step 6: Final answer
    x = 29,479.45

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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.