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Finding the Fourth Proportional to 5,644.92, 7,790.58 and 3,491.76

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Solution

The fourth proportional to 5,644.92, 7,790.58 and 3,491.76 is: 4,818.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.92 : 7,790.58 = 3,491.76 : x
  2. Step 2: Convert to fraction form
    5,644.92/7,790.58 = 3,491.76/x
  3. Step 3: Cross multiply
    5,644.92x = 7,790.58 × 3,491.76
  4. Step 4: Simplify right side
    5,644.92x = 27,202,835.62
  5. Step 5: Solve for x
    x = 27,202,835.62/5,644.92
  6. Step 6: Final answer
    x = 4,818.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.