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Finding the Fourth Proportional to 11,957.79, 17,926.79 and 5,714.67

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Solution

The fourth proportional to 11,957.79, 17,926.79 and 5,714.67 is: 8,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.79 : 17,926.79 = 5,714.67 : x
  2. Step 2: Convert to fraction form
    11,957.79/17,926.79 = 5,714.67/x
  3. Step 3: Cross multiply
    11,957.79x = 17,926.79 × 5,714.67
  4. Step 4: Simplify right side
    11,957.79x = 102,445,660.44
  5. Step 5: Solve for x
    x = 102,445,660.44/11,957.79
  6. Step 6: Final answer
    x = 8,567.27

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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.