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Finding the Fourth Proportional to 11,591.52, 17,343.92 and 6,894.40

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Solution

The fourth proportional to 11,591.52, 17,343.92 and 6,894.40 is: 10,315.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591.52 : 17,343.92 = 6,894.40 : x
  2. Step 2: Convert to fraction form
    11,591.52/17,343.92 = 6,894.40/x
  3. Step 3: Cross multiply
    11,591.52x = 17,343.92 × 6,894.40
  4. Step 4: Simplify right side
    11,591.52x = 119,575,922.05
  5. Step 5: Solve for x
    x = 119,575,922.05/11,591.52
  6. Step 6: Final answer
    x = 10,315.81

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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.