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Finding the Fourth Proportional to 19,888.52, 27,450.35 and 12,615.92

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Solution

The fourth proportional to 19,888.52, 27,450.35 and 12,615.92 is: 17,412.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.52 : 27,450.35 = 12,615.92 : x
  2. Step 2: Convert to fraction form
    19,888.52/27,450.35 = 12,615.92/x
  3. Step 3: Cross multiply
    19,888.52x = 27,450.35 × 12,615.92
  4. Step 4: Simplify right side
    19,888.52x = 346,311,219.24
  5. Step 5: Solve for x
    x = 346,311,219.24/19,888.52
  6. Step 6: Final answer
    x = 17,412.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.