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Finding the Fourth Proportional to 19,599.90, 27,048 and 10,647.48

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Solution

The fourth proportional to 19,599.90, 27,048 and 10,647.48 is: 14,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,599.90 : 27,048 = 10,647.48 : x
  2. Step 2: Convert to fraction form
    19,599.90/27,048 = 10,647.48/x
  3. Step 3: Cross multiply
    19,599.90x = 27,048 × 10,647.48
  4. Step 4: Simplify right side
    19,599.90x = 287,993,039.04
  5. Step 5: Solve for x
    x = 287,993,039.04/19,599.90
  6. Step 6: Final answer
    x = 14,693.60

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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.