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Finding the Fourth Proportional to 52,662.26, 79,025.79 and 47,740.70

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Solution

The fourth proportional to 52,662.26, 79,025.79 and 47,740.70 is: 71,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,662.26 : 79,025.79 = 47,740.70 : x
  2. Step 2: Convert to fraction form
    52,662.26/79,025.79 = 47,740.70/x
  3. Step 3: Cross multiply
    52,662.26x = 79,025.79 × 47,740.70
  4. Step 4: Simplify right side
    52,662.26x = 3,772,746,532.65
  5. Step 5: Solve for x
    x = 3,772,746,532.65/52,662.26
  6. Step 6: Final answer
    x = 71,640.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.