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Finding the Fourth Proportional to 59,976.40, 89,921.40 and 33,689.20

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Solution

The fourth proportional to 59,976.40, 89,921.40 and 33,689.20 is: 50,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,976.40 : 89,921.40 = 33,689.20 : x
  2. Step 2: Convert to fraction form
    59,976.40/89,921.40 = 33,689.20/x
  3. Step 3: Cross multiply
    59,976.40x = 89,921.40 × 33,689.20
  4. Step 4: Simplify right side
    59,976.40x = 3,029,380,028.88
  5. Step 5: Solve for x
    x = 3,029,380,028.88/59,976.40
  6. Step 6: Final answer
    x = 50,509.53

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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.