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Finding the Fourth Proportional to 12,716.82, 19,075.02 and 3,482.82

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Solution

The fourth proportional to 12,716.82, 19,075.02 and 3,482.82 is: 5,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.82 : 19,075.02 = 3,482.82 : x
  2. Step 2: Convert to fraction form
    12,716.82/19,075.02 = 3,482.82/x
  3. Step 3: Cross multiply
    12,716.82x = 19,075.02 × 3,482.82
  4. Step 4: Simplify right side
    12,716.82x = 66,434,861.16
  5. Step 5: Solve for x
    x = 66,434,861.16/12,716.82
  6. Step 6: Final answer
    x = 5,224.17

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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.