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Finding the Fourth Proportional to 19,019.52, 26,246.92 and 10,636

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Solution

The fourth proportional to 19,019.52, 26,246.92 and 10,636 is: 14,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.52 : 26,246.92 = 10,636 : x
  2. Step 2: Convert to fraction form
    19,019.52/26,246.92 = 10,636/x
  3. Step 3: Cross multiply
    19,019.52x = 26,246.92 × 10,636
  4. Step 4: Simplify right side
    19,019.52x = 279,162,241.12
  5. Step 5: Solve for x
    x = 279,162,241.12/19,019.52
  6. Step 6: Final answer
    x = 14,677.67

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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.