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Finding the Fourth Proportional to 66,536.70, 91,820.91 and 36,322.69

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Solution

The fourth proportional to 66,536.70, 91,820.91 and 36,322.69 is: 50,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.70 : 91,820.91 = 36,322.69 : x
  2. Step 2: Convert to fraction form
    66,536.70/91,820.91 = 36,322.69/x
  3. Step 3: Cross multiply
    66,536.70x = 91,820.91 × 36,322.69
  4. Step 4: Simplify right side
    66,536.70x = 3,335,182,267.83
  5. Step 5: Solve for x
    x = 3,335,182,267.83/66,536.70
  6. Step 6: Final answer
    x = 50,125.45

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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.