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Finding the Fourth Proportional to 8,524.15, 11,760.03 and 6,291.31

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Solution

The fourth proportional to 8,524.15, 11,760.03 and 6,291.31 is: 8,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,524.15 : 11,760.03 = 6,291.31 : x
  2. Step 2: Convert to fraction form
    8,524.15/11,760.03 = 6,291.31/x
  3. Step 3: Cross multiply
    8,524.15x = 11,760.03 × 6,291.31
  4. Step 4: Simplify right side
    8,524.15x = 73,985,994.34
  5. Step 5: Solve for x
    x = 73,985,994.34/8,524.15
  6. Step 6: Final answer
    x = 8,679.57

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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.