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Finding the Fourth Proportional to 11,500.76, 15,860.54 and 8,524.02

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Solution

The fourth proportional to 11,500.76, 15,860.54 and 8,524.02 is: 11,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500.76 : 15,860.54 = 8,524.02 : x
  2. Step 2: Convert to fraction form
    11,500.76/15,860.54 = 8,524.02/x
  3. Step 3: Cross multiply
    11,500.76x = 15,860.54 × 8,524.02
  4. Step 4: Simplify right side
    11,500.76x = 135,195,560.17
  5. Step 5: Solve for x
    x = 135,195,560.17/11,500.76
  6. Step 6: Final answer
    x = 11,755.36

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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.