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Finding the Fourth Proportional to 13,246.75, 19,870.17 and 4,012.75

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Solution

The fourth proportional to 13,246.75, 19,870.17 and 4,012.75 is: 6,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.75 : 19,870.17 = 4,012.75 : x
  2. Step 2: Convert to fraction form
    13,246.75/19,870.17 = 4,012.75/x
  3. Step 3: Cross multiply
    13,246.75x = 19,870.17 × 4,012.75
  4. Step 4: Simplify right side
    13,246.75x = 79,734,024.67
  5. Step 5: Solve for x
    x = 79,734,024.67/13,246.75
  6. Step 6: Final answer
    x = 6,019.14

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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.