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Finding the Fourth Proportional to 6,647.02, 9,945.91 and 4,893.32

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Solution

The fourth proportional to 6,647.02, 9,945.91 and 4,893.32 is: 7,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.02 : 9,945.91 = 4,893.32 : x
  2. Step 2: Convert to fraction form
    6,647.02/9,945.91 = 4,893.32/x
  3. Step 3: Cross multiply
    6,647.02x = 9,945.91 × 4,893.32
  4. Step 4: Simplify right side
    6,647.02x = 48,668,551.30
  5. Step 5: Solve for x
    x = 48,668,551.30/6,647.02
  6. Step 6: Final answer
    x = 7,321.86

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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.