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Finding the Fourth Proportional to 18,474.84, 25,468.28 and 14,699.44

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Solution

The fourth proportional to 18,474.84, 25,468.28 and 14,699.44 is: 20,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.84 : 25,468.28 = 14,699.44 : x
  2. Step 2: Convert to fraction form
    18,474.84/25,468.28 = 14,699.44/x
  3. Step 3: Cross multiply
    18,474.84x = 25,468.28 × 14,699.44
  4. Step 4: Simplify right side
    18,474.84x = 374,369,453.76
  5. Step 5: Solve for x
    x = 374,369,453.76/18,474.84
  6. Step 6: Final answer
    x = 20,263.75

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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.