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Finding the Fourth Proportional to 65,618.76, 90,545.76 and 36,934.92

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Solution

The fourth proportional to 65,618.76, 90,545.76 and 36,934.92 is: 50,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,618.76 : 90,545.76 = 36,934.92 : x
  2. Step 2: Convert to fraction form
    65,618.76/90,545.76 = 36,934.92/x
  3. Step 3: Cross multiply
    65,618.76x = 90,545.76 × 36,934.92
  4. Step 4: Simplify right side
    65,618.76x = 3,344,300,401.94
  5. Step 5: Solve for x
    x = 3,344,300,401.94/65,618.76
  6. Step 6: Final answer
    x = 50,965.61

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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.