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Finding the Fourth Proportional to 8,577.96, 12,865.91 and 3,893.00

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Solution

The fourth proportional to 8,577.96, 12,865.91 and 3,893.00 is: 5,839.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.96 : 12,865.91 = 3,893.00 : x
  2. Step 2: Convert to fraction form
    8,577.96/12,865.91 = 3,893.00/x
  3. Step 3: Cross multiply
    8,577.96x = 12,865.91 × 3,893.00
  4. Step 4: Simplify right side
    8,577.96x = 50,086,903.84
  5. Step 5: Solve for x
    x = 50,086,903.84/8,577.96
  6. Step 6: Final answer
    x = 5,839.02

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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.