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Finding the Fourth Proportional to 12,277.56, 16,923.60 and 11,260.56

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Solution

The fourth proportional to 12,277.56, 16,923.60 and 11,260.56 is: 15,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.56 : 16,923.60 = 11,260.56 : x
  2. Step 2: Convert to fraction form
    12,277.56/16,923.60 = 11,260.56/x
  3. Step 3: Cross multiply
    12,277.56x = 16,923.60 × 11,260.56
  4. Step 4: Simplify right side
    12,277.56x = 190,569,213.22
  5. Step 5: Solve for x
    x = 190,569,213.22/12,277.56
  6. Step 6: Final answer
    x = 15,521.75

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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.