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Finding the Fourth Proportional to 6,777.77, 9,354.77 and 4,126.02

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Solution

The fourth proportional to 6,777.77, 9,354.77 and 4,126.02 is: 5,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,777.77 : 9,354.77 = 4,126.02 : x
  2. Step 2: Convert to fraction form
    6,777.77/9,354.77 = 4,126.02/x
  3. Step 3: Cross multiply
    6,777.77x = 9,354.77 × 4,126.02
  4. Step 4: Simplify right side
    6,777.77x = 38,597,947.49
  5. Step 5: Solve for x
    x = 38,597,947.49/6,777.77
  6. Step 6: Final answer
    x = 5,694.79

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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.