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Finding the Fourth Proportional to 50,628.31, 69,259.88 and 50,415.08

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Solution

The fourth proportional to 50,628.31, 69,259.88 and 50,415.08 is: 68,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,628.31 : 69,259.88 = 50,415.08 : x
  2. Step 2: Convert to fraction form
    50,628.31/69,259.88 = 50,415.08/x
  3. Step 3: Cross multiply
    50,628.31x = 69,259.88 × 50,415.08
  4. Step 4: Simplify right side
    50,628.31x = 3,491,742,170.73
  5. Step 5: Solve for x
    x = 3,491,742,170.73/50,628.31
  6. Step 6: Final answer
    x = 68,968.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.