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Finding the Fourth Proportional to 5,654.34, 8,484.03 and 2,191.86

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Solution

The fourth proportional to 5,654.34, 8,484.03 and 2,191.86 is: 3,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.34 : 8,484.03 = 2,191.86 : x
  2. Step 2: Convert to fraction form
    5,654.34/8,484.03 = 2,191.86/x
  3. Step 3: Cross multiply
    5,654.34x = 8,484.03 × 2,191.86
  4. Step 4: Simplify right side
    5,654.34x = 18,595,806.00
  5. Step 5: Solve for x
    x = 18,595,806.00/5,654.34
  6. Step 6: Final answer
    x = 3,288.77

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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.