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Finding the Fourth Proportional to 6,115.88, 9,169.44 and 4,947.32

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Solution

The fourth proportional to 6,115.88, 9,169.44 and 4,947.32 is: 7,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.88 : 9,169.44 = 4,947.32 : x
  2. Step 2: Convert to fraction form
    6,115.88/9,169.44 = 4,947.32/x
  3. Step 3: Cross multiply
    6,115.88x = 9,169.44 × 4,947.32
  4. Step 4: Simplify right side
    6,115.88x = 45,364,153.90
  5. Step 5: Solve for x
    x = 45,364,153.90/6,115.88
  6. Step 6: Final answer
    x = 7,417.44

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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.