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Finding the Fourth Proportional to 14,888.56, 20,523.36 and 11,739.28

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Solution

The fourth proportional to 14,888.56, 20,523.36 and 11,739.28 is: 16,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.56 : 20,523.36 = 11,739.28 : x
  2. Step 2: Convert to fraction form
    14,888.56/20,523.36 = 11,739.28/x
  3. Step 3: Cross multiply
    14,888.56x = 20,523.36 × 11,739.28
  4. Step 4: Simplify right side
    14,888.56x = 240,929,469.58
  5. Step 5: Solve for x
    x = 240,929,469.58/14,888.56
  6. Step 6: Final answer
    x = 16,182.19

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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.