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Finding the Fourth Proportional to 59,634.44, 89,455.80 and 20,178.21

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Solution

The fourth proportional to 59,634.44, 89,455.80 and 20,178.21 is: 30,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,634.44 : 89,455.80 = 20,178.21 : x
  2. Step 2: Convert to fraction form
    59,634.44/89,455.80 = 20,178.21/x
  3. Step 3: Cross multiply
    59,634.44x = 89,455.80 × 20,178.21
  4. Step 4: Simplify right side
    59,634.44x = 1,805,057,918.12
  5. Step 5: Solve for x
    x = 1,805,057,918.12/59,634.44
  6. Step 6: Final answer
    x = 30,268.72

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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.