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Finding the Fourth Proportional to 66,375.99, 91,595.70 and 36,161.17

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Solution

The fourth proportional to 66,375.99, 91,595.70 and 36,161.17 is: 49,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.99 : 91,595.70 = 36,161.17 : x
  2. Step 2: Convert to fraction form
    66,375.99/91,595.70 = 36,161.17/x
  3. Step 3: Cross multiply
    66,375.99x = 91,595.70 × 36,161.17
  4. Step 4: Simplify right side
    66,375.99x = 3,312,207,449.98
  5. Step 5: Solve for x
    x = 3,312,207,449.98/66,375.99
  6. Step 6: Final answer
    x = 49,900.69

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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.