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Finding the Fourth Proportional to 7,880.25, 10,874.46 and 4,343.25

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Solution

The fourth proportional to 7,880.25, 10,874.46 and 4,343.25 is: 5,993.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.25 : 10,874.46 = 4,343.25 : x
  2. Step 2: Convert to fraction form
    7,880.25/10,874.46 = 4,343.25/x
  3. Step 3: Cross multiply
    7,880.25x = 10,874.46 × 4,343.25
  4. Step 4: Simplify right side
    7,880.25x = 47,230,498.40
  5. Step 5: Solve for x
    x = 47,230,498.40/7,880.25
  6. Step 6: Final answer
    x = 5,993.53

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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.