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Finding the Fourth Proportional to 7,256.72, 10,888.73 and 5,411.54

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Solution

The fourth proportional to 7,256.72, 10,888.73 and 5,411.54 is: 8,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.72 : 10,888.73 = 5,411.54 : x
  2. Step 2: Convert to fraction form
    7,256.72/10,888.73 = 5,411.54/x
  3. Step 3: Cross multiply
    7,256.72x = 10,888.73 × 5,411.54
  4. Step 4: Simplify right side
    7,256.72x = 58,924,716.44
  5. Step 5: Solve for x
    x = 58,924,716.44/7,256.72
  6. Step 6: Final answer
    x = 8,120.03

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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.