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Finding the Fourth Proportional to 22,481.28, 31,025.84 and 13,051.28

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Solution

The fourth proportional to 22,481.28, 31,025.84 and 13,051.28 is: 18,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,481.28 : 31,025.84 = 13,051.28 : x
  2. Step 2: Convert to fraction form
    22,481.28/31,025.84 = 13,051.28/x
  3. Step 3: Cross multiply
    22,481.28x = 31,025.84 × 13,051.28
  4. Step 4: Simplify right side
    22,481.28x = 404,926,925.08
  5. Step 5: Solve for x
    x = 404,926,925.08/22,481.28
  6. Step 6: Final answer
    x = 18,011.74

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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.