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Finding the Fourth Proportional to 8,777.12, 12,111.94 and 4,797.44

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Solution

The fourth proportional to 8,777.12, 12,111.94 and 4,797.44 is: 6,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.12 : 12,111.94 = 4,797.44 : x
  2. Step 2: Convert to fraction form
    8,777.12/12,111.94 = 4,797.44/x
  3. Step 3: Cross multiply
    8,777.12x = 12,111.94 × 4,797.44
  4. Step 4: Simplify right side
    8,777.12x = 58,106,305.43
  5. Step 5: Solve for x
    x = 58,106,305.43/8,777.12
  6. Step 6: Final answer
    x = 6,620.20

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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.