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Finding the Fourth Proportional to 7,789.68, 11,684.28 and 2,595.42

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Solution

The fourth proportional to 7,789.68, 11,684.28 and 2,595.42 is: 3,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.68 : 11,684.28 = 2,595.42 : x
  2. Step 2: Convert to fraction form
    7,789.68/11,684.28 = 2,595.42/x
  3. Step 3: Cross multiply
    7,789.68x = 11,684.28 × 2,595.42
  4. Step 4: Simplify right side
    7,789.68x = 30,325,614.00
  5. Step 5: Solve for x
    x = 30,325,614.00/7,789.68
  6. Step 6: Final answer
    x = 3,893.05

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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.