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Finding the Fourth Proportional to 66,891.96, 92,307.06 and 36,671.40

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Solution

The fourth proportional to 66,891.96, 92,307.06 and 36,671.40 is: 50,604.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891.96 : 92,307.06 = 36,671.40 : x
  2. Step 2: Convert to fraction form
    66,891.96/92,307.06 = 36,671.40/x
  3. Step 3: Cross multiply
    66,891.96x = 92,307.06 × 36,671.40
  4. Step 4: Simplify right side
    66,891.96x = 3,385,029,120.08
  5. Step 5: Solve for x
    x = 3,385,029,120.08/66,891.96
  6. Step 6: Final answer
    x = 50,604.42

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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.