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Finding the Fourth Proportional to 13,103.36, 19,649.16 and 5,704.16

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Solution

The fourth proportional to 13,103.36, 19,649.16 and 5,704.16 is: 8,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.36 : 19,649.16 = 5,704.16 : x
  2. Step 2: Convert to fraction form
    13,103.36/19,649.16 = 5,704.16/x
  3. Step 3: Cross multiply
    13,103.36x = 19,649.16 × 5,704.16
  4. Step 4: Simplify right side
    13,103.36x = 112,081,952.51
  5. Step 5: Solve for x
    x = 112,081,952.51/13,103.36
  6. Step 6: Final answer
    x = 8,553.68

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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.