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Finding the Fourth Proportional to 7,153.92, 10,730.44 and 4,250.70

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Solution

The fourth proportional to 7,153.92, 10,730.44 and 4,250.70 is: 6,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.92 : 10,730.44 = 4,250.70 : x
  2. Step 2: Convert to fraction form
    7,153.92/10,730.44 = 4,250.70/x
  3. Step 3: Cross multiply
    7,153.92x = 10,730.44 × 4,250.70
  4. Step 4: Simplify right side
    7,153.92x = 45,611,881.31
  5. Step 5: Solve for x
    x = 45,611,881.31/7,153.92
  6. Step 6: Final answer
    x = 6,375.79

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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.