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Finding the Fourth Proportional to 6,622.56, 9,914.40 and 4,641.30

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Solution

The fourth proportional to 6,622.56, 9,914.40 and 4,641.30 is: 6,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.56 : 9,914.40 = 4,641.30 : x
  2. Step 2: Convert to fraction form
    6,622.56/9,914.40 = 4,641.30/x
  3. Step 3: Cross multiply
    6,622.56x = 9,914.40 × 4,641.30
  4. Step 4: Simplify right side
    6,622.56x = 46,015,704.72
  5. Step 5: Solve for x
    x = 46,015,704.72/6,622.56
  6. Step 6: Final answer
    x = 6,948.33

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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.