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Finding the Fourth Proportional to 11,262.64, 15,524.54 and 8,868.81

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Solution

The fourth proportional to 11,262.64, 15,524.54 and 8,868.81 is: 12,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.64 : 15,524.54 = 8,868.81 : x
  2. Step 2: Convert to fraction form
    11,262.64/15,524.54 = 8,868.81/x
  3. Step 3: Cross multiply
    11,262.64x = 15,524.54 × 8,868.81
  4. Step 4: Simplify right side
    11,262.64x = 137,684,234.40
  5. Step 5: Solve for x
    x = 137,684,234.40/11,262.64
  6. Step 6: Final answer
    x = 12,224.87

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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.