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Finding the Fourth Proportional to 5,660.61, 8,484.22 and 3,321.73

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Solution

The fourth proportional to 5,660.61, 8,484.22 and 3,321.73 is: 4,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.61 : 8,484.22 = 3,321.73 : x
  2. Step 2: Convert to fraction form
    5,660.61/8,484.22 = 3,321.73/x
  3. Step 3: Cross multiply
    5,660.61x = 8,484.22 × 3,321.73
  4. Step 4: Simplify right side
    5,660.61x = 28,182,288.10
  5. Step 5: Solve for x
    x = 28,182,288.10/5,660.61
  6. Step 6: Final answer
    x = 4,978.67

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Double scale
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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.