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Finding the Fourth Proportional to 7,458.98, 11,172.27 and 7,251.62

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Solution

The fourth proportional to 7,458.98, 11,172.27 and 7,251.62 is: 10,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.98 : 11,172.27 = 7,251.62 : x
  2. Step 2: Convert to fraction form
    7,458.98/11,172.27 = 7,251.62/x
  3. Step 3: Cross multiply
    7,458.98x = 11,172.27 × 7,251.62
  4. Step 4: Simplify right side
    7,458.98x = 81,017,056.58
  5. Step 5: Solve for x
    x = 81,017,056.58/7,458.98
  6. Step 6: Final answer
    x = 10,861.68

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1.5x scale

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.