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Finding the Fourth Proportional to 66,536.70, 91,820.82 and 36,322.05

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Solution

The fourth proportional to 66,536.70, 91,820.82 and 36,322.05 is: 50,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.70 : 91,820.82 = 36,322.05 : x
  2. Step 2: Convert to fraction form
    66,536.70/91,820.82 = 36,322.05/x
  3. Step 3: Cross multiply
    66,536.70x = 91,820.82 × 36,322.05
  4. Step 4: Simplify right side
    66,536.70x = 3,335,119,814.41
  5. Step 5: Solve for x
    x = 3,335,119,814.41/66,536.70
  6. Step 6: Final answer
    x = 50,124.51

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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.