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Finding the Fourth Proportional to 64,545.85, 89,081.62 and 36,251.53

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Solution

The fourth proportional to 64,545.85, 89,081.62 and 36,251.53 is: 50,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,545.85 : 89,081.62 = 36,251.53 : x
  2. Step 2: Convert to fraction form
    64,545.85/89,081.62 = 36,251.53/x
  3. Step 3: Cross multiply
    64,545.85x = 89,081.62 × 36,251.53
  4. Step 4: Simplify right side
    64,545.85x = 3,229,345,019.88
  5. Step 5: Solve for x
    x = 3,229,345,019.88/64,545.85
  6. Step 6: Final answer
    x = 50,031.80

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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.