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Finding the Fourth Proportional to 11,137.68, 16,693.56 and 10,489.68

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Solution

The fourth proportional to 11,137.68, 16,693.56 and 10,489.68 is: 15,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.68 : 16,693.56 = 10,489.68 : x
  2. Step 2: Convert to fraction form
    11,137.68/16,693.56 = 10,489.68/x
  3. Step 3: Cross multiply
    11,137.68x = 16,693.56 × 10,489.68
  4. Step 4: Simplify right side
    11,137.68x = 175,110,102.46
  5. Step 5: Solve for x
    x = 175,110,102.46/11,137.68
  6. Step 6: Final answer
    x = 15,722.31

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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.