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Finding the Fourth Proportional to 8,885.55, 12,261.99 and 5,348.01

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Solution

The fourth proportional to 8,885.55, 12,261.99 and 5,348.01 is: 7,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.55 : 12,261.99 = 5,348.01 : x
  2. Step 2: Convert to fraction form
    8,885.55/12,261.99 = 5,348.01/x
  3. Step 3: Cross multiply
    8,885.55x = 12,261.99 × 5,348.01
  4. Step 4: Simplify right side
    8,885.55x = 65,577,245.14
  5. Step 5: Solve for x
    x = 65,577,245.14/8,885.55
  6. Step 6: Final answer
    x = 7,380.21

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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.