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Finding the Fourth Proportional to 11,796.16, 17,690.64 and 9,947.92

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Solution

The fourth proportional to 11,796.16, 17,690.64 and 9,947.92 is: 14,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,796.16 : 17,690.64 = 9,947.92 : x
  2. Step 2: Convert to fraction form
    11,796.16/17,690.64 = 9,947.92/x
  3. Step 3: Cross multiply
    11,796.16x = 17,690.64 × 9,947.92
  4. Step 4: Simplify right side
    11,796.16x = 175,985,071.47
  5. Step 5: Solve for x
    x = 175,985,071.47/11,796.16
  6. Step 6: Final answer
    x = 14,918.84

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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.