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Finding the Fourth Proportional to 11,410.90, 17,116.35 and 5,266.90

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Solution

The fourth proportional to 11,410.90, 17,116.35 and 5,266.90 is: 7,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,410.90 : 17,116.35 = 5,266.90 : x
  2. Step 2: Convert to fraction form
    11,410.90/17,116.35 = 5,266.90/x
  3. Step 3: Cross multiply
    11,410.90x = 17,116.35 × 5,266.90
  4. Step 4: Simplify right side
    11,410.90x = 90,150,103.82
  5. Step 5: Solve for x
    x = 90,150,103.82/11,410.90
  6. Step 6: Final answer
    x = 7,900.35

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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.