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Finding the Fourth Proportional to 19,976.49, 27,566.63 and 11,472.63

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Solution

The fourth proportional to 19,976.49, 27,566.63 and 11,472.63 is: 15,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.49 : 27,566.63 = 11,472.63 : x
  2. Step 2: Convert to fraction form
    19,976.49/27,566.63 = 11,472.63/x
  3. Step 3: Cross multiply
    19,976.49x = 27,566.63 × 11,472.63
  4. Step 4: Simplify right side
    19,976.49x = 316,261,746.34
  5. Step 5: Solve for x
    x = 316,261,746.34/19,976.49
  6. Step 6: Final answer
    x = 15,831.70

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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.