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Finding the Fourth Proportional to 15,141.79, 22,714.20 and 5,789.68

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Solution

The fourth proportional to 15,141.79, 22,714.20 and 5,789.68 is: 8,685.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.79 : 22,714.20 = 5,789.68 : x
  2. Step 2: Convert to fraction form
    15,141.79/22,714.20 = 5,789.68/x
  3. Step 3: Cross multiply
    15,141.79x = 22,714.20 × 5,789.68
  4. Step 4: Simplify right side
    15,141.79x = 131,507,806.94
  5. Step 5: Solve for x
    x = 131,507,806.94/15,141.79
  6. Step 6: Final answer
    x = 8,685.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.