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Finding the Fourth Proportional to 66,084.62, 91,196.85 and 35,869.94

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Solution

The fourth proportional to 66,084.62, 91,196.85 and 35,869.94 is: 49,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,084.62 : 91,196.85 = 35,869.94 : x
  2. Step 2: Convert to fraction form
    66,084.62/91,196.85 = 35,869.94/x
  3. Step 3: Cross multiply
    66,084.62x = 91,196.85 × 35,869.94
  4. Step 4: Simplify right side
    66,084.62x = 3,271,225,081.70
  5. Step 5: Solve for x
    x = 3,271,225,081.70/66,084.62
  6. Step 6: Final answer
    x = 49,500.55

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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.