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Finding the Fourth Proportional to 8,693, 11,991.92 and 5,500.92

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Solution

The fourth proportional to 8,693, 11,991.92 and 5,500.92 is: 7,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693 : 11,991.92 = 5,500.92 : x
  2. Step 2: Convert to fraction form
    8,693/11,991.92 = 5,500.92/x
  3. Step 3: Cross multiply
    8,693x = 11,991.92 × 5,500.92
  4. Step 4: Simplify right side
    8,693x = 65,966,592.57
  5. Step 5: Solve for x
    x = 65,966,592.57/8,693
  6. Step 6: Final answer
    x = 7,588.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.