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Finding the Fourth Proportional to 5,769.68, 8,654.28 and 4,622.72

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Solution

The fourth proportional to 5,769.68, 8,654.28 and 4,622.72 is: 6,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.68 : 8,654.28 = 4,622.72 : x
  2. Step 2: Convert to fraction form
    5,769.68/8,654.28 = 4,622.72/x
  3. Step 3: Cross multiply
    5,769.68x = 8,654.28 × 4,622.72
  4. Step 4: Simplify right side
    5,769.68x = 40,006,313.24
  5. Step 5: Solve for x
    x = 40,006,313.24/5,769.68
  6. Step 6: Final answer
    x = 6,933.89

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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.