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Finding the Fourth Proportional to 8,516.88, 11,728.44 and 7,503.48

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Solution

The fourth proportional to 8,516.88, 11,728.44 and 7,503.48 is: 10,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.88 : 11,728.44 = 7,503.48 : x
  2. Step 2: Convert to fraction form
    8,516.88/11,728.44 = 7,503.48/x
  3. Step 3: Cross multiply
    8,516.88x = 11,728.44 × 7,503.48
  4. Step 4: Simplify right side
    8,516.88x = 88,004,114.97
  5. Step 5: Solve for x
    x = 88,004,114.97/8,516.88
  6. Step 6: Final answer
    x = 10,332.91

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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.