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Finding the Fourth Proportional to 64,891.88, 89,545.38 and 36,604.52

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Solution

The fourth proportional to 64,891.88, 89,545.38 and 36,604.52 is: 50,511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.88 : 89,545.38 = 36,604.52 : x
  2. Step 2: Convert to fraction form
    64,891.88/89,545.38 = 36,604.52/x
  3. Step 3: Cross multiply
    64,891.88x = 89,545.38 × 36,604.52
  4. Step 4: Simplify right side
    64,891.88x = 3,277,765,653.12
  5. Step 5: Solve for x
    x = 3,277,765,653.12/64,891.88
  6. Step 6: Final answer
    x = 50,511.18

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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.