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Finding the Fourth Proportional to 11,292.90, 16,896.15 and 7,404.90

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Solution

The fourth proportional to 11,292.90, 16,896.15 and 7,404.90 is: 11,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.90 : 16,896.15 = 7,404.90 : x
  2. Step 2: Convert to fraction form
    11,292.90/16,896.15 = 7,404.90/x
  3. Step 3: Cross multiply
    11,292.90x = 16,896.15 × 7,404.90
  4. Step 4: Simplify right side
    11,292.90x = 125,114,301.14
  5. Step 5: Solve for x
    x = 125,114,301.14/11,292.90
  6. Step 6: Final answer
    x = 11,079.02

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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.