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Finding the Fourth Proportional to 13,696.76, 18,901.79 and 8,035.83

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Solution

The fourth proportional to 13,696.76, 18,901.79 and 8,035.83 is: 11,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.76 : 18,901.79 = 8,035.83 : x
  2. Step 2: Convert to fraction form
    13,696.76/18,901.79 = 8,035.83/x
  3. Step 3: Cross multiply
    13,696.76x = 18,901.79 × 8,035.83
  4. Step 4: Simplify right side
    13,696.76x = 151,891,530.96
  5. Step 5: Solve for x
    x = 151,891,530.96/13,696.76
  6. Step 6: Final answer
    x = 11,089.60

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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.