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Finding the Fourth Proportional to 11,873.94, 17,817.12 and 4,859.16

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Solution

The fourth proportional to 11,873.94, 17,817.12 and 4,859.16 is: 7,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.94 : 17,817.12 = 4,859.16 : x
  2. Step 2: Convert to fraction form
    11,873.94/17,817.12 = 4,859.16/x
  3. Step 3: Cross multiply
    11,873.94x = 17,817.12 × 4,859.16
  4. Step 4: Simplify right side
    11,873.94x = 86,576,236.82
  5. Step 5: Solve for x
    x = 86,576,236.82/11,873.94
  6. Step 6: Final answer
    x = 7,291.28

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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.