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Finding the Fourth Proportional to 6,659.22, 9,190.85 and 6,363.98

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Solution

The fourth proportional to 6,659.22, 9,190.85 and 6,363.98 is: 8,783.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.22 : 9,190.85 = 6,363.98 : x
  2. Step 2: Convert to fraction form
    6,659.22/9,190.85 = 6,363.98/x
  3. Step 3: Cross multiply
    6,659.22x = 9,190.85 × 6,363.98
  4. Step 4: Simplify right side
    6,659.22x = 58,490,307.81
  5. Step 5: Solve for x
    x = 58,490,307.81/6,659.22
  6. Step 6: Final answer
    x = 8,783.36

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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.