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Finding the Fourth Proportional to 9,203.97, 12,699.52 and 6,366.79

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Solution

The fourth proportional to 9,203.97, 12,699.52 and 6,366.79 is: 8,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,203.97 : 12,699.52 = 6,366.79 : x
  2. Step 2: Convert to fraction form
    9,203.97/12,699.52 = 6,366.79/x
  3. Step 3: Cross multiply
    9,203.97x = 12,699.52 × 6,366.79
  4. Step 4: Simplify right side
    9,203.97x = 80,855,185.90
  5. Step 5: Solve for x
    x = 80,855,185.90/9,203.97
  6. Step 6: Final answer
    x = 8,784.82

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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.