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Finding the Fourth Proportional to 14,957.54, 20,641.30 and 8,243.17

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Solution

The fourth proportional to 14,957.54, 20,641.30 and 8,243.17 is: 11,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,957.54 : 20,641.30 = 8,243.17 : x
  2. Step 2: Convert to fraction form
    14,957.54/20,641.30 = 8,243.17/x
  3. Step 3: Cross multiply
    14,957.54x = 20,641.30 × 8,243.17
  4. Step 4: Simplify right side
    14,957.54x = 170,149,672.71
  5. Step 5: Solve for x
    x = 170,149,672.71/14,957.54
  6. Step 6: Final answer
    x = 11,375.51

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1.5x scale

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.