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Finding the Fourth Proportional to 14,872.62, 20,522.70 and 8,904.14

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Solution

The fourth proportional to 14,872.62, 20,522.70 and 8,904.14 is: 12,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.62 : 20,522.70 = 8,904.14 : x
  2. Step 2: Convert to fraction form
    14,872.62/20,522.70 = 8,904.14/x
  3. Step 3: Cross multiply
    14,872.62x = 20,522.70 × 8,904.14
  4. Step 4: Simplify right side
    14,872.62x = 182,736,968.32
  5. Step 5: Solve for x
    x = 182,736,968.32/14,872.62
  6. Step 6: Final answer
    x = 12,286.80

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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.