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Finding the Fourth Proportional to 14,957.61, 20,641.26 and 8,583.94

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Solution

The fourth proportional to 14,957.61, 20,641.26 and 8,583.94 is: 11,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,957.61 : 20,641.26 = 8,583.94 : x
  2. Step 2: Convert to fraction form
    14,957.61/20,641.26 = 8,583.94/x
  3. Step 3: Cross multiply
    14,957.61x = 20,641.26 × 8,583.94
  4. Step 4: Simplify right side
    14,957.61x = 177,183,294.44
  5. Step 5: Solve for x
    x = 177,183,294.44/14,957.61
  6. Step 6: Final answer
    x = 11,845.70

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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.