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Finding the Fourth Proportional to 50,672.56, 69,928.24 and 28,316.56

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Solution

The fourth proportional to 50,672.56, 69,928.24 and 28,316.56 is: 39,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,672.56 : 69,928.24 = 28,316.56 : x
  2. Step 2: Convert to fraction form
    50,672.56/69,928.24 = 28,316.56/x
  3. Step 3: Cross multiply
    50,672.56x = 69,928.24 × 28,316.56
  4. Step 4: Simplify right side
    50,672.56x = 1,980,127,203.65
  5. Step 5: Solve for x
    x = 1,980,127,203.65/50,672.56
  6. Step 6: Final answer
    x = 39,076.91

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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.