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Finding the Fourth Proportional to 50,784.65, 76,184.07 and 21,195.71

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Solution

The fourth proportional to 50,784.65, 76,184.07 and 21,195.71 is: 31,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,784.65 : 76,184.07 = 21,195.71 : x
  2. Step 2: Convert to fraction form
    50,784.65/76,184.07 = 21,195.71/x
  3. Step 3: Cross multiply
    50,784.65x = 76,184.07 × 21,195.71
  4. Step 4: Simplify right side
    50,784.65x = 1,614,775,767.77
  5. Step 5: Solve for x
    x = 1,614,775,767.77/50,784.65
  6. Step 6: Final answer
    x = 31,796.53

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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.