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Finding the Fourth Proportional to 7,994.88, 11,997.66 and 2,800.77

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Solution

The fourth proportional to 7,994.88, 11,997.66 and 2,800.77 is: 4,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.88 : 11,997.66 = 2,800.77 : x
  2. Step 2: Convert to fraction form
    7,994.88/11,997.66 = 2,800.77/x
  3. Step 3: Cross multiply
    7,994.88x = 11,997.66 × 2,800.77
  4. Step 4: Simplify right side
    7,994.88x = 33,602,686.20
  5. Step 5: Solve for x
    x = 33,602,686.20/7,994.88
  6. Step 6: Final answer
    x = 4,203.03

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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.