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Finding the Fourth Proportional to 66,881.61, 92,296.22 and 36,668.21

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Solution

The fourth proportional to 66,881.61, 92,296.22 and 36,668.21 is: 50,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.61 : 92,296.22 = 36,668.21 : x
  2. Step 2: Convert to fraction form
    66,881.61/92,296.22 = 36,668.21/x
  3. Step 3: Cross multiply
    66,881.61x = 92,296.22 × 36,668.21
  4. Step 4: Simplify right side
    66,881.61x = 3,384,336,532.34
  5. Step 5: Solve for x
    x = 3,384,336,532.34/66,881.61
  6. Step 6: Final answer
    x = 50,601.90

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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.