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Finding the Fourth Proportional to 9,255.90, 13,871.70 and 6,655.80

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Solution

The fourth proportional to 9,255.90, 13,871.70 and 6,655.80 is: 9,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.90 : 13,871.70 = 6,655.80 : x
  2. Step 2: Convert to fraction form
    9,255.90/13,871.70 = 6,655.80/x
  3. Step 3: Cross multiply
    9,255.90x = 13,871.70 × 6,655.80
  4. Step 4: Simplify right side
    9,255.90x = 92,327,260.86
  5. Step 5: Solve for x
    x = 92,327,260.86/9,255.90
  6. Step 6: Final answer
    x = 9,974.96

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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.