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Finding the Fourth Proportional to 18,474.76, 25,504.50 and 14,432.68

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Solution

The fourth proportional to 18,474.76, 25,504.50 and 14,432.68 is: 19,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.76 : 25,504.50 = 14,432.68 : x
  2. Step 2: Convert to fraction form
    18,474.76/25,504.50 = 14,432.68/x
  3. Step 3: Cross multiply
    18,474.76x = 25,504.50 × 14,432.68
  4. Step 4: Simplify right side
    18,474.76x = 368,098,287.06
  5. Step 5: Solve for x
    x = 368,098,287.06/18,474.76
  6. Step 6: Final answer
    x = 19,924.39

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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.