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Finding the Fourth Proportional to 19,166.76, 28,880.46 and 15,951.78

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Solution

The fourth proportional to 19,166.76, 28,880.46 and 15,951.78 is: 24,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.76 : 28,880.46 = 15,951.78 : x
  2. Step 2: Convert to fraction form
    19,166.76/28,880.46 = 15,951.78/x
  3. Step 3: Cross multiply
    19,166.76x = 28,880.46 × 15,951.78
  4. Step 4: Simplify right side
    19,166.76x = 460,694,744.22
  5. Step 5: Solve for x
    x = 460,694,744.22/19,166.76
  6. Step 6: Final answer
    x = 24,036.13

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.