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Finding the Fourth Proportional to 6,653.88, 9,967.86 and 2,947.32

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Solution

The fourth proportional to 6,653.88, 9,967.86 and 2,947.32 is: 4,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.88 : 9,967.86 = 2,947.32 : x
  2. Step 2: Convert to fraction form
    6,653.88/9,967.86 = 2,947.32/x
  3. Step 3: Cross multiply
    6,653.88x = 9,967.86 × 2,947.32
  4. Step 4: Simplify right side
    6,653.88x = 29,378,473.14
  5. Step 5: Solve for x
    x = 29,378,473.14/6,653.88
  6. Step 6: Final answer
    x = 4,415.24

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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.