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Finding the Fourth Proportional to 12,551.64, 18,841.08 and 9,440.52

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Solution

The fourth proportional to 12,551.64, 18,841.08 and 9,440.52 is: 14,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.64 : 18,841.08 = 9,440.52 : x
  2. Step 2: Convert to fraction form
    12,551.64/18,841.08 = 9,440.52/x
  3. Step 3: Cross multiply
    12,551.64x = 18,841.08 × 9,440.52
  4. Step 4: Simplify right side
    12,551.64x = 177,869,592.56
  5. Step 5: Solve for x
    x = 177,869,592.56/12,551.64
  6. Step 6: Final answer
    x = 14,171.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.