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Finding the Fourth Proportional to 19,615.71, 27,069.84 and 10,663.23

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Solution

The fourth proportional to 19,615.71, 27,069.84 and 10,663.23 is: 14,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.71 : 27,069.84 = 10,663.23 : x
  2. Step 2: Convert to fraction form
    19,615.71/27,069.84 = 10,663.23/x
  3. Step 3: Cross multiply
    19,615.71x = 27,069.84 × 10,663.23
  4. Step 4: Simplify right side
    19,615.71x = 288,651,929.98
  5. Step 5: Solve for x
    x = 288,651,929.98/19,615.71
  6. Step 6: Final answer
    x = 14,715.34

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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.