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Finding the Fourth Proportional to 9,901.94, 14,853.86 and 2,786.16

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Solution

The fourth proportional to 9,901.94, 14,853.86 and 2,786.16 is: 4,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.94 : 14,853.86 = 2,786.16 : x
  2. Step 2: Convert to fraction form
    9,901.94/14,853.86 = 2,786.16/x
  3. Step 3: Cross multiply
    9,901.94x = 14,853.86 × 2,786.16
  4. Step 4: Simplify right side
    9,901.94x = 41,385,230.58
  5. Step 5: Solve for x
    x = 41,385,230.58/9,901.94
  6. Step 6: Final answer
    x = 4,179.51

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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.