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Finding the Fourth Proportional to 5,785.70, 7,976.30 and 3,660.16

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Solution

The fourth proportional to 5,785.70, 7,976.30 and 3,660.16 is: 5,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.70 : 7,976.30 = 3,660.16 : x
  2. Step 2: Convert to fraction form
    5,785.70/7,976.30 = 3,660.16/x
  3. Step 3: Cross multiply
    5,785.70x = 7,976.30 × 3,660.16
  4. Step 4: Simplify right side
    5,785.70x = 29,194,534.21
  5. Step 5: Solve for x
    x = 29,194,534.21/5,785.70
  6. Step 6: Final answer
    x = 5,045.98

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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.